74497618 has 16 divisors (see below), whose sum is σ = 120821400. Its totient is φ = 34246656.

The previous prime is 74497603. The next prime is 74497627. The reversal of 74497618 is 81679447.

It can be written as a sum of positive squares in 4 ways, for example, as 65334889 + 9162729 = 8083^2 + 3027^2 .

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, 1108 + ... + 12256.

Almost surely, 2^74497618 is an apocalyptic number.

74497618 is a deficient number, since it is larger than the sum of its proper divisors (46323782).

74497618 is a wasteful number, since it uses less digits than its factorization.

74497618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11421.

The product of its digits is 338688, while the sum is 46.

The square root of 74497618 is about 8631.2002641579. The cubic root of 74497618 is about 420.7726103761.

The spelling of 74497618 in words is "seventy-four million, four hundred ninety-seven thousand, six hundred eighteen".