57430388 has 12 divisors (see below), whose sum is σ = 105792960. Its totient is φ = 27203832.

The previous prime is 57430363. The next prime is 57430397. The reversal of 57430388 is 88303475.

It is a happy number.

57430388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 377756 + ... + 377907.

It is an arithmetic number, because the mean of its divisors is an integer number (8816080).

Almost surely, 2^57430388 is an apocalyptic number.

It is an amenable number.

57430388 is a deficient number, since it is larger than the sum of its proper divisors (48362572).

57430388 is a wasteful number, since it uses less digits than its factorization.

57430388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755686 (or 755684 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 57430388 is about 7578.2839746212. The cubic root of 57430388 is about 385.8163103553.

The spelling of 57430388 in words is "fifty-seven million, four hundred thirty thousand, three hundred eighty-eight".