57400245 has 96 divisors (see below), whose sum is σ = 125169408. Its totient is φ = 24634368.

The previous prime is 57400237. The next prime is 57400253. The reversal of 57400245 is 54200475.

It is an interprime number because it is at equal distance from previous prime (57400237) and next prime (57400253).

It is not a de Polignac number, because 57400245 - 2³ = 57400237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 144387 + ... + 144783.

It is an arithmetic number, because the mean of its divisors is an integer number (1303848).

Almost surely, 2^57400245 is an apocalyptic number.

It is an amenable number.

57400245 is an abundant number, since it is smaller than the sum of its proper divisors (67769163).

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

57400245 is a wasteful number, since it uses less digits than its factorization.

57400245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 57400245 is about 7576.2949388207. The cubic root of 57400245 is about 385.7487984991.

The spelling of 57400245 in words is "fifty-seven million, four hundred thousand, two hundred forty-five".