57842457 has 16 divisors (see below), whose sum is σ = 79399680. Its totient is φ = 37440000.

The previous prime is 57842437. The next prime is 57842461. The reversal of 57842457 is 75424875.

It is not a de Polignac number, because 57842457 - 2²⁰ = 56793881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57842417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12457 + ... + 16457.

It is an arithmetic number, because the mean of its divisors is an integer number (4962480).

Almost surely, 2^57842457 is an apocalyptic number.

It is an amenable number.

57842457 is a deficient number, since it is larger than the sum of its proper divisors (21557223).

57842457 is a wasteful number, since it uses less digits than its factorization.

57842457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4144.

The product of its digits is 313600, while the sum is 42.

The square root of 57842457 is about 7605.4228679279. The cubic root of 57842457 is about 386.7368695197.

The spelling of 57842457 in words is "fifty-seven million, eight hundred forty-two thousand, four hundred fifty-seven".