57474390 has 16 divisors (see below), whose sum is σ = 137938608. Its totient is φ = 15326496.

The previous prime is 57474379. The next prime is 57474397. The reversal of 57474390 is 9347475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57474397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 957877 + ... + 957936.

It is an arithmetic number, because the mean of its divisors is an integer number (8621163).

Almost surely, 2^57474390 is an apocalyptic number.

57474390 is an abundant number, since it is smaller than the sum of its proper divisors (80464218).

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

57474390 is a wasteful number, since it uses less digits than its factorization.

57474390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915823.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 57474390 is about 7581.1865825872. The cubic root of 57474390 is about 385.9148200815.

It can be divided in two parts, 57474 and 390, that multiplied together give a triangular number (22414860 = T₆₆₉₅).

The spelling of 57474390 in words is "fifty-seven million, four hundred seventy-four thousand, three hundred ninety".