57723040 has 24 divisors (see below), whose sum is σ = 136371060. Its totient is φ = 23089152.

The previous prime is 57723013. The next prime is 57723067. The reversal of 57723040 is 4032775.

It is an interprime number because it is at equal distance from previous prime (57723013) and next prime (57723067).

It can be written as a sum of positive squares in 2 ways, for example, as 56731024 + 992016 = 7532^2 + 996^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180225 + ... + 180544.

Almost surely, 2^57723040 is an apocalyptic number.

It is an amenable number.

57723040 is an abundant number, since it is smaller than the sum of its proper divisors (78648020).

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

57723040 is a wasteful number, since it uses less digits than its factorization.

57723040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360784 (or 360776 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57723040 is about 7597.5680319429. The cubic root of 57723040 is about 386.4705439546.

The spelling of 57723040 in words is "fifty-seven million, seven hundred twenty-three thousand, forty".