74515028 has 12 divisors (see below), whose sum is σ = 149030112. Its totient is φ = 31935000.

The previous prime is 74515013. The next prime is 74515033. The reversal of 74515028 is 82051547.

74515028 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 74514985 and 74515003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330598 + ... + 1330653.

It is an arithmetic number, because the mean of its divisors is an integer number (12419176).

Almost surely, 2^74515028 is an apocalyptic number.

It is an amenable number.

74515028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74515028 is a wasteful number, since it uses less digits than its factorization.

74515028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661262 (or 2661260 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 74515028 is about 8632.2087555851. The cubic root of 74515028 is about 420.8053858337.

The spelling of 74515028 in words is "seventy-four million, five hundred fifteen thousand, twenty-eight".