57240679 has 8 divisors (see below), whose sum is σ = 58371840. Its totient is φ = 56115000.

The previous prime is 57240661. The next prime is 57240691. The reversal of 57240679 is 97604275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57240679 - 2⁵ = 57240647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57220679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24304 + ... + 26554.

It is an arithmetic number, because the mean of its divisors is an integer number (7296480).

Almost surely, 2^57240679 is an apocalyptic number.

57240679 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

57240679 is a deficient number, since it is larger than the sum of its proper divisors (1131161).

57240679 is a wasteful number, since it uses less digits than its factorization.

57240679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 57240679 is about 7565.7570011202. The cubic root of 57240679 is about 385.3910211807.

The spelling of 57240679 in words is "fifty-seven million, two hundred forty thousand, six hundred seventy-nine".