74144864 has 24 divisors (see below), whose sum is σ = 146203848. Its totient is φ = 37013760.

The previous prime is 74144809. The next prime is 74144881. The reversal of 74144864 is 46844147.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24524 + ... + 27380.

It is an arithmetic number, because the mean of its divisors is an integer number (6091827).

Almost surely, 2^74144864 is an apocalyptic number.

It is an amenable number.

74144864 is a deficient number, since it is larger than the sum of its proper divisors (72058984).

74144864 is a wasteful number, since it uses less digits than its factorization.

74144864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678 (or 3670 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 74144864 is about 8610.7411992232. The cubic root of 74144864 is about 420.1074252799.

The spelling of 74144864 in words is "seventy-four million, one hundred forty-four thousand, eight hundred sixty-four".