1057972180 has 12 divisors (see below), whose sum is σ = 2221741620. Its totient is φ = 423188864.

The previous prime is 1057972121. The next prime is 1057972213. The reversal of 1057972180 is 812797501.

It can be written as a sum of positive squares in 2 ways, for example, as 393466896 + 664505284 = 19836^2 + 25778^2 .

It is a super-2 number, since 2×1057972180² = 2238610267307904800, which contains 22 as substring.

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, 26449285 + ... + 26449324.

It is an arithmetic number, because the mean of its divisors is an integer number (185145135).

Almost surely, 2^1057972180 is an apocalyptic number.

1057972180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057972180 is an abundant number, since it is smaller than the sum of its proper divisors (1163769440).

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

1057972180 is a wasteful number, since it uses less digits than its factorization.

1057972180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52898618 (or 52898616 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 1057972180 is about 32526.4842858862. The cubic root of 1057972180 is about 1018.9622214358.

The spelling of 1057972180 in words is "one billion, fifty-seven million, nine hundred seventy-two thousand, one hundred eighty".