57726420 has 48 divisors (see below), whose sum is σ = 162062208. Its totient is φ = 15352960.

The previous prime is 57726413. The next prime is 57726439. The reversal of 57726420 is 2462775.

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, 26617 + ... + 28703.

It is an arithmetic number, because the mean of its divisors is an integer number (3376296).

Almost surely, 2^57726420 is an apocalyptic number.

It is an amenable number.

57726420 is an abundant number, since it is smaller than the sum of its proper divisors (104335788).

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

57726420 is a wasteful number, since it uses less digits than its factorization.

57726420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 57726420 is about 7597.7904682875. The cubic root of 57726420 is about 386.4780871294.

The spelling of 57726420 in words is "fifty-seven million, seven hundred twenty-six thousand, four hundred twenty".