12857020 has 24 divisors (see below), whose sum is σ = 29454768. Its totient is φ = 4675200.

The previous prime is 12857017. The next prime is 12857021. The reversal of 12857020 is 2075821.

12857020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12857021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29001 + ... + 29440.

It is an arithmetic number, because the mean of its divisors is an integer number (1227282).

Almost surely, 2^12857020 is an apocalyptic number.

12857020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12857020 is an abundant number, since it is smaller than the sum of its proper divisors (16597748).

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

12857020 is a wasteful number, since it uses less digits than its factorization.

12857020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58461 (or 58459 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12857020 is about 3585.6686963522. The cubic root of 12857020 is about 234.2682534932.

The spelling of 12857020 in words is "twelve million, eight hundred fifty-seven thousand, twenty".