74380664 has 8 divisors (see below), whose sum is σ = 139463760. Its totient is φ = 37190328.

The previous prime is 74380639. The next prime is 74380703. The reversal of 74380664 is 46608347.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4648784 + ... + 4648799.

It is an arithmetic number, because the mean of its divisors is an integer number (17432970).

Almost surely, 2^74380664 is an apocalyptic number.

It is an amenable number.

74380664 is a deficient number, since it is larger than the sum of its proper divisors (65083096).

74380664 is a wasteful number, since it uses less digits than its factorization.

74380664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9297589 (or 9297585 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 74380664 is about 8624.4225313930. The cubic root of 74380664 is about 420.5523043858.

The spelling of 74380664 in words is "seventy-four million, three hundred eighty thousand, six hundred sixty-four".