57378938 has 4 divisors (see below), whose sum is σ = 86068410. Its totient is φ = 28689468.

The previous prime is 57378929. The next prime is 57378941. The reversal of 57378938 is 83987375.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49182169 + 8196769 = 7013^2 + 2863^2 .

It is a super-3 number, since 3×57378938³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14344733 + ... + 14344736.

Almost surely, 2^57378938 is an apocalyptic number.

57378938 is a deficient number, since it is larger than the sum of its proper divisors (28689472).

57378938 is a wasteful number, since it uses less digits than its factorization.

57378938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28689471.

The product of its digits is 1270080, while the sum is 50.

The square root of 57378938 is about 7574.8886460462. Note that the first 3 decimals coincide. The cubic root of 57378938 is about 385.7010625423.

The spelling of 57378938 in words is "fifty-seven million, three hundred seventy-eight thousand, nine hundred thirty-eight".