57038388 has 96 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 16348800.

The previous prime is 57038369. The next prime is 57038407. The reversal of 57038388 is 88383075.

57038388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57038369) and next prime (57038407).

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 31 ways as a sum of consecutive naturals, for example, 216745 + ... + 217007.

It is an arithmetic number, because the mean of its divisors is an integer number (1596672).

Almost surely, 2^57038388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57038388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76640256).

57038388 is an abundant number, since it is smaller than the sum of its proper divisors (96242124).

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

57038388 is a wasteful number, since it uses less digits than its factorization.

57038388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 57038388 is about 7552.3763147767. The cubic root of 57038388 is about 384.9364892144.

The spelling of 57038388 in words is "fifty-seven million, thirty-eight thousand, three hundred eighty-eight".