57378930 has 32 divisors (see below), whose sum is σ = 157382784. Its totient is φ = 13115136.

The previous prime is 57378929. The next prime is 57378941. The reversal of 57378930 is 3987375.

57378930 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 (42).

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 136407 + ... + 136826.

It is an arithmetic number, because the mean of its divisors is an integer number (4918212).

Almost surely, 2^57378930 is an apocalyptic number.

57378930 is an abundant number, since it is smaller than the sum of its proper divisors (100003854).

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

57378930 is a wasteful number, since it uses less digits than its factorization.

57378930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273250.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 57378930 is about 7574.8881179856. Note that the first 3 decimals coincide. The cubic root of 57378930 is about 385.7010446170.

The spelling of 57378930 in words is "fifty-seven million, three hundred seventy-eight thousand, nine hundred thirty".