74938280 has 64 divisors (see below), whose sum is σ = 178934400. Its totient is φ = 28166400.

The previous prime is 74938273. The next prime is 74938313. The reversal of 74938280 is 8283947.

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, 114434 + ... + 115086.

It is an arithmetic number, because the mean of its divisors is an integer number (2795850).

Almost surely, 2^74938280 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 74938280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89467200).

74938280 is an abundant number, since it is smaller than the sum of its proper divisors (103996120).

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

74938280 is a wasteful number, since it uses less digits than its factorization.

74938280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 74938280 is about 8656.6898985698. The cubic root of 74938280 is about 421.6006194279.

The spelling of 74938280 in words is "seventy-four million, nine hundred thirty-eight thousand, two hundred eighty".