1230572656 has 20 divisors (see below), whose sum is σ = 2429221752. Its totient is φ = 603676736.

The previous prime is 1230572633. The next prime is 1230572663. The reversal of 1230572656 is 6562750321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724726 + ... + 726421.

Almost surely, 2^1230572656 is an apocalyptic number.

1230572656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1230572656 is a deficient number, since it is larger than the sum of its proper divisors (1198649096).

1230572656 is a wasteful number, since it uses less digits than its factorization.

1230572656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451208 (or 1451202 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 1230572656 is about 35079.5190388922. The cubic root of 1230572656 is about 1071.6075222859.

The spelling of 1230572656 in words is "one billion, two hundred thirty million, five hundred seventy-two thousand, six hundred fifty-six".