1230459678 has 120 divisors (see below), whose sum is σ = 3161813616. Its totient is φ = 345744000.

The previous prime is 1230459673. The next prime is 1230459683. The reversal of 1230459678 is 8769540321.

1230459678 is a `hidden beast` number, since 123 + 0 + 459 + 6 + 78 = 666.

1230459678 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1230459673) and next prime (1230459683).

1230459678 is strictly pandigital in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230459673) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3068278 + ... + 3068678.

It is a 1-persistent number, because it is pandigital, but 2⋅1230459678 = 2460919356 is not.

It is a vampire number, since it can be written as 16842 ⋅ 73059 (with its own digits).

Almost surely, 2^1230459678 is an apocalyptic number.

1230459678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230459678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580906808).

1230459678 is an abundant number, since it is smaller than the sum of its proper divisors (1931353938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230459678 is an equidigital number, since it uses as much as digits as its factorization.

1230459678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1230459678 is about 35077.9086890881. The cubic root of 1230459678 is about 1071.5747267742.

Adding to 1230459678 its reverse (8769540321), we get a palindrome (9999999999).

The spelling of 1230459678 in words is "one billion, two hundred thirty million, four hundred fifty-nine thousand, six hundred seventy-eight".