74982720 has 112 divisors (see below), whose sum is σ = 244620288. Its totient is φ = 19445760.

The previous prime is 74982709. The next prime is 74982749. The reversal of 74982720 is 2728947.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34465 + ... + 36575.

Almost surely, 2^74982720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74982720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122310144).

74982720 is an abundant number, since it is smaller than the sum of its proper divisors (169637568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74982720 is a wasteful number, since it uses less digits than its factorization.

74982720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168 (or 2158 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 74982720 is about 8659.2563191073. The cubic root of 74982720 is about 421.6839423488.

The spelling of 74982720 in words is "seventy-four million, nine hundred eighty-two thousand, seven hundred twenty".