57426408 has 160 divisors (see below), whose sum is σ = 183866760. Its totient is φ = 16588800.

The previous prime is 57426403. The next prime is 57426419. The reversal of 57426408 is 80462475.

57426408 is a `hidden beast` number, since 5 + 7 + 4 + 2 + 640 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 56881764 + 544644 = 7542^2 + 738^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57426403) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 143008 + ... + 143408.

Almost surely, 2^57426408 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 57426408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91933380).

57426408 is an abundant number, since it is smaller than the sum of its proper divisors (126440352).

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

57426408 is a wasteful number, since it uses less digits than its factorization.

57426408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 57426408 is about 7578.0213776421. The cubic root of 57426408 is about 385.8073976267.

The spelling of 57426408 in words is "fifty-seven million, four hundred twenty-six thousand, four hundred eight".