57402388 has 24 divisors (see below), whose sum is σ = 105110208. Its totient is φ = 27377856.

The previous prime is 57402383. The next prime is 57402391. The reversal of 57402388 is 88320475.

57402388 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 (57402383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47520 + ... + 48712.

It is an arithmetic number, because the mean of its divisors is an integer number (4379592).

Almost surely, 2^57402388 is an apocalyptic number.

It is an amenable number.

57402388 is a deficient number, since it is larger than the sum of its proper divisors (47707820).

57402388 is a wasteful number, since it uses less digits than its factorization.

57402388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743 (or 1741 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 57402388 is about 7576.4363654689. The cubic root of 57402388 is about 385.7535989977.

It can be divided in two parts, 5740 and 2388, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 57402388 in words is "fifty-seven million, four hundred two thousand, three hundred eighty-eight".