74721480 has 64 divisors (see below), whose sum is σ = 233919360. Its totient is φ = 19058688.

The previous prime is 74721461. The next prime is 74721529. The reversal of 74721480 is 8412747.

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, 10777 + ... + 16296.

It is an arithmetic number, because the mean of its divisors is an integer number (3654990).

Almost surely, 2^74721480 is an apocalyptic number.

It is an amenable number.

74721480 is an abundant number, since it is smaller than the sum of its proper divisors (159197880).

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

74721480 is a wasteful number, since it uses less digits than its factorization.

74721480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27110 (or 27106 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 74721480 is about 8644.1587213563. The cubic root of 74721480 is about 421.1936565216.

The spelling of 74721480 in words is "seventy-four million, seven hundred twenty-one thousand, four hundred eighty".