74390516 has 12 divisors (see below), whose sum is σ = 133211232. Its totient is φ = 36330168.

The previous prime is 74390509. The next prime is 74390531. The reversal of 74390516 is 61509347.

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, 216080 + ... + 216423.

It is an arithmetic number, because the mean of its divisors is an integer number (11100936).

Almost surely, 2^74390516 is an apocalyptic number.

It is an amenable number.

74390516 is a deficient number, since it is larger than the sum of its proper divisors (58820716).

74390516 is a wasteful number, since it uses less digits than its factorization.

74390516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432550 (or 432548 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 74390516 is about 8624.9936811571. The cubic root of 74390516 is about 420.5708714800.

The spelling of 74390516 in words is "seventy-four million, three hundred ninety thousand, five hundred sixteen".