57409308 has 36 divisors (see below), whose sum is σ = 158311608. Its totient is φ = 17396640.

The previous prime is 57409277. The next prime is 57409337. The reversal of 57409308 is 80390475.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72091 + ... + 72882.

Almost surely, 2^57409308 is an apocalyptic number.

It is an amenable number.

57409308 is an abundant number, since it is smaller than the sum of its proper divisors (100902300).

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

57409308 is a wasteful number, since it uses less digits than its factorization.

57409308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144994 (or 144989 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 57409308 is about 7576.8930307878. The cubic root of 57409308 is about 385.7690995587.

The spelling of 57409308 in words is "fifty-seven million, four hundred nine thousand, three hundred eight".