1230455320 has 64 divisors (see below), whose sum is σ = 2839716000. Its totient is φ = 479582208.

The previous prime is 1230455309. The next prime is 1230455321. The reversal of 1230455320 is 235540321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230455321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1218976 + ... + 1219984.

Almost surely, 2^1230455320 is an apocalyptic number.

1230455320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230455320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419858000).

1230455320 is an abundant number, since it is smaller than the sum of its proper divisors (1609260680).

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

1230455320 is a wasteful number, since it uses less digits than its factorization.

1230455320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1230455320 is about 35077.8465701645. The cubic root of 1230455320 is about 1071.5734616838.

Adding to 1230455320 its reverse (235540321), we get a palindrome (1465995641).

The spelling of 1230455320 in words is "one billion, two hundred thirty million, four hundred fifty-five thousand, three hundred twenty".