74981424 has 80 divisors (see below), whose sum is σ = 234413568. Its totient is φ = 20161536.

The previous prime is 74981399. The next prime is 74981437. The reversal of 74981424 is 42418947.

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, 852 + ... + 12275.

Almost surely, 2^74981424 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 74981424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117206784).

74981424 is an abundant number, since it is smaller than the sum of its proper divisors (159432144).

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

74981424 is a wasteful number, since it uses less digits than its factorization.

74981424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13162 (or 13156 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 74981424 is about 8659.1814855678. The cubic root of 74981424 is about 421.6815128756.

The spelling of 74981424 in words is "seventy-four million, nine hundred eighty-one thousand, four hundred twenty-four".