57840291 has 16 divisors (see below), whose sum is σ = 85883520. Its totient is φ = 38472840.

The previous prime is 57840269. The next prime is 57840311. The reversal of 57840291 is 19204875.

57840291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57840291 - 2⁵ = 57840259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57840191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11076 + ... + 15438.

It is an arithmetic number, because the mean of its divisors is an integer number (5367720).

Almost surely, 2^57840291 is an apocalyptic number.

57840291 is a deficient number, since it is larger than the sum of its proper divisors (28043229).

57840291 is a wasteful number, since it uses less digits than its factorization.

57840291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4863 (or 4857 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 57840291 is about 7605.2804682010. The cubic root of 57840291 is about 386.7320421400.

The spelling of 57840291 in words is "fifty-seven million, eight hundred forty thousand, two hundred ninety-one".