57438492 has 12 divisors (see below), whose sum is σ = 134023176. Its totient is φ = 19146160.

The previous prime is 57438487. The next prime is 57438509. The reversal of 57438492 is 29483475.

57438492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 2393259 + ... + 2393282.

It is an arithmetic number, because the mean of its divisors is an integer number (11168598).

Almost surely, 2^57438492 is an apocalyptic number.

It is an amenable number.

57438492 is an abundant number, since it is smaller than the sum of its proper divisors (76584684).

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

57438492 is a wasteful number, since it uses less digits than its factorization.

57438492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786548 (or 4786546 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 57438492 is about 7578.8186414507. The cubic root of 57438492 is about 385.8344570104.

The spelling of 57438492 in words is "fifty-seven million, four hundred thirty-eight thousand, four hundred ninety-two".