74745218 has 16 divisors (see below), whose sum is σ = 113892480. Its totient is φ = 36784176.

The previous prime is 74745199. The next prime is 74745263. The reversal of 74745218 is 81254747.

It is a super-2 number, since 2×74745218² = 11173695227735048, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73280 + ... + 74292.

It is an arithmetic number, because the mean of its divisors is an integer number (7118280).

Almost surely, 2^74745218 is an apocalyptic number.

74745218 is a deficient number, since it is larger than the sum of its proper divisors (39147262).

74745218 is a wasteful number, since it uses less digits than its factorization.

74745218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its digits is 62720, while the sum is 38.

The square root of 74745218 is about 8645.5316782717. The cubic root of 74745218 is about 421.2382543018.

The spelling of 74745218 in words is "seventy-four million, seven hundred forty-five thousand, two hundred eighteen".