74672928 has 192 divisors, whose sum is σ = 243008640. Its totient is φ = 22394880.

The previous prime is 74672911. The next prime is 74672929. The reversal of 74672928 is 82927647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74672929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 769776 + ... + 769872.

It is an arithmetic number, because the mean of its divisors is an integer number (1265670).

Almost surely, 2^74672928 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 74672928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121504320).

74672928 is an abundant number, since it is smaller than the sum of its proper divisors (168335712).

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

74672928 is an equidigital number, since it uses as much as digits as its factorization.

74672928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 113 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 74672928 is about 8641.3498945477. The cubic root of 74672928 is about 421.1024100007.

The spelling of 74672928 in words is "seventy-four million, six hundred seventy-two thousand, nine hundred twenty-eight".