1056306680 has 64 divisors (see below), whose sum is σ = 2792210400. Its totient is φ = 354562560.

The previous prime is 1056306661. The next prime is 1056306703. The reversal of 1056306680 is 866036501.

It is a super-2 number, since 2×1056306680² = 2231567604425244800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1056306680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86615 + ... + 98054.

Almost surely, 2^1056306680 is an apocalyptic number.

1056306680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056306680 is an abundant number, since it is smaller than the sum of its proper divisors (1735903720).

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

1056306680 is a wasteful number, since it uses less digits than its factorization.

1056306680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184704 (or 184700 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1056306680 is about 32500.8719883021. The cubic root of 1056306680 is about 1018.4272442634.

The spelling of 1056306680 in words is "one billion, fifty-six million, three hundred six thousand, six hundred eighty".