57012340 has 48 divisors (see below), whose sum is σ = 149272704. Its totient is φ = 17769600.

The previous prime is 57012313. The next prime is 57012359. The reversal of 57012340 is 4321075.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 16971 + ... + 20050.

It is an arithmetic number, because the mean of its divisors is an integer number (3109848).

Almost surely, 2^57012340 is an apocalyptic number.

It is an amenable number.

57012340 is an abundant number, since it is smaller than the sum of its proper divisors (92260364).

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

57012340 is a wasteful number, since it uses less digits than its factorization.

57012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37048 (or 37046 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 57012340 is about 7550.6516275087. The cubic root of 57012340 is about 384.8778833483.

The spelling of 57012340 in words is "fifty-seven million, twelve thousand, three hundred forty".