74331028 has 6 divisors (see below), whose sum is σ = 130079306. Its totient is φ = 37165512.

The previous prime is 74331013. The next prime is 74331043. The reversal of 74331028 is 82013347.

It is an interprime number because it is at equal distance from previous prime (74331013) and next prime (74331043).

It can be written as a sum of positive squares in only one way, i.e., 66389904 + 7941124 = 8148^2 + 2818^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74330987 and 74331005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9291375 + ... + 9291382.

Almost surely, 2^74331028 is an apocalyptic number.

It is an amenable number.

74331028 is a deficient number, since it is larger than the sum of its proper divisors (55748278).

74331028 is a wasteful number, since it uses less digits than its factorization.

74331028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18582761 (or 18582759 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 74331028 is about 8621.5444092111. The cubic root of 74331028 is about 420.4587353579.

The spelling of 74331028 in words is "seventy-four million, three hundred thirty-one thousand, twenty-eight".