1230062540 has 144 divisors (see below), whose sum is σ = 3270964032. Its totient is φ = 379281408.

The previous prime is 1230062539. The next prime is 1230062549. The reversal of 1230062540 is 452600321.

It is a super-2 number, since 2×1230062540² = 3026107704622503200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1230062549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1258532 + ... + 1259508.

It is an arithmetic number, because the mean of its divisors is an integer number (22715028).

Almost surely, 2^1230062540 is an apocalyptic number.

1230062540 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 1230062540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1635482016).

1230062540 is an abundant number, since it is smaller than the sum of its proper divisors (2040901492).

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

1230062540 is a wasteful number, since it uses less digits than its factorization.

1230062540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1230062540 is about 35072.2474329775. The cubic root of 1230062540 is about 1071.4594287155.

Adding to 1230062540 its reverse (452600321), we get a palindrome (1682662861).

The spelling of 1230062540 in words is "one billion, two hundred thirty million, sixty-two thousand, five hundred forty".