10857520 has 20 divisors (see below), whose sum is σ = 25243920. Its totient is φ = 4342976.

The previous prime is 10857503. The next prime is 10857521. The reversal of 10857520 is 2575801.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (10857521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67780 + ... + 67939.

It is an arithmetic number, because the mean of its divisors is an integer number (1262196).

Almost surely, 2^10857520 is an apocalyptic number.

10857520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10857520 is an abundant number, since it is smaller than the sum of its proper divisors (14386400).

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

10857520 is a wasteful number, since it uses less digits than its factorization.

10857520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135732 (or 135726 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 10857520 is about 3295.0751129527. The cubic root of 10857520 is about 221.4336128875.

The spelling of 10857520 in words is "ten million, eight hundred fifty-seven thousand, five hundred twenty".