1057898520 has 96 divisors (see below), whose sum is σ = 3929346720. Its totient is φ = 241804800.

The previous prime is 1057898489. The next prime is 1057898557. The reversal of 1057898520 is 258987501.

It is a happy number.

It is a super-2 number, since 2×1057898520² = 2238298557236380800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207381 + ... + 212420.

It is an arithmetic number, because the mean of its divisors is an integer number (40930695).

Almost surely, 2^1057898520 is an apocalyptic number.

1057898520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1057898520 is an abundant number, since it is smaller than the sum of its proper divisors (2871448200).

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

1057898520 is a wasteful number, since it uses less digits than its factorization.

1057898520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419825 (or 419818 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 1057898520 is about 32525.3519581264. The cubic root of 1057898520 is about 1018.9385728937.

The spelling of 1057898520 in words is "one billion, fifty-seven million, eight hundred ninety-eight thousand, five hundred twenty".