1056478980 has 48 divisors (see below), whose sum is σ = 3030297984. Its totient is φ = 274855680.

The previous prime is 1056478967. The next prime is 1056478999. The reversal of 1056478980 is 898746501.

It is a super-2 number, since 2×1056478980² = 2232295670363680800, which contains 22 as substring.

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, 212272 + ... + 217191.

It is an arithmetic number, because the mean of its divisors is an integer number (63131208).

Almost surely, 2^1056478980 is an apocalyptic number.

1056478980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056478980 is an abundant number, since it is smaller than the sum of its proper divisors (1973819004).

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

1056478980 is a wasteful number, since it uses less digits than its factorization.

1056478980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429516 (or 429514 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 1056478980 is about 32503.5225783299. The cubic root of 1056478980 is about 1018.4826150118.

The spelling of 1056478980 in words is "one billion, fifty-six million, four hundred seventy-eight thousand, nine hundred eighty".