74133328 has 20 divisors (see below), whose sum is σ = 152082900. Its totient is φ = 34886144.

The previous prime is 74133263. The next prime is 74133337. The reversal of 74133328 is 82333147.

It can be written as a sum of positive squares in 2 ways, for example, as 64448784 + 9684544 = 8028^2 + 3112^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74133328.

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 in 3 ways as a sum of consecutive naturals, for example, 136003 + ... + 136546.

It is an arithmetic number, because the mean of its divisors is an integer number (7604145).

Almost surely, 2^74133328 is an apocalyptic number.

It is an amenable number.

74133328 is an abundant number, since it is smaller than the sum of its proper divisors (77949572).

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

74133328 is a wasteful number, since it uses less digits than its factorization.

74133328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272574 (or 272568 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 74133328 is about 8610.0713121321. The cubic root of 74133328 is about 420.0856363550.

The spelling of 74133328 in words is "seventy-four million, one hundred thirty-three thousand, three hundred twenty-eight".