74482728 has 32 divisors (see below), whose sum is σ = 187293600. Its totient is φ = 24682688.

The previous prime is 74482693. The next prime is 74482741. The reversal of 74482728 is 82728447.

It is a self number, because there is not a number n which added to its sum of digits gives 74482728.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4818 + ... + 13121.

It is an arithmetic number, because the mean of its divisors is an integer number (5852925).

Almost surely, 2^74482728 is an apocalyptic number.

It is an amenable number.

74482728 is an abundant number, since it is smaller than the sum of its proper divisors (112810872).

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

74482728 is a wasteful number, since it uses less digits than its factorization.

74482728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18121 (or 18117 counting only the distinct ones).

The product of its digits is 200704, while the sum is 42.

The square root of 74482728 is about 8630.3376527225. The cubic root of 74482728 is about 420.7445749310.

The spelling of 74482728 in words is "seventy-four million, four hundred eighty-two thousand, seven hundred twenty-eight".