57401618 has 16 divisors (see below), whose sum is σ = 87399000. Its totient is φ = 28271232.

The previous prime is 57401569. The next prime is 57401623. The reversal of 57401618 is 81610475.

It is a happy number.

57401618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 35844169 + 21557449 = 5987^2 + 4643^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68828 + ... + 69656.

Almost surely, 2^57401618 is an apocalyptic number.

57401618 is a deficient number, since it is larger than the sum of its proper divisors (29997382).

57401618 is a wasteful number, since it uses less digits than its factorization.

57401618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 57401618 is about 7576.3855498516. The cubic root of 57401618 is about 385.7518741473.

The spelling of 57401618 in words is "fifty-seven million, four hundred one thousand, six hundred eighteen".