74445328 has 10 divisors (see below), whose sum is σ = 144237854. Its totient is φ = 37222656.

The previous prime is 74445313. The next prime is 74445347. The reversal of 74445328 is 82354447.

It can be written as a sum of positive squares in only one way, i.e., 74166544 + 278784 = 8612^2 + 528^2 .

It is a super-2 number, since 2×74445328² = 11084213722055168, which contains 22 as substring.

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, 2326401 + ... + 2326432.

Almost surely, 2^74445328 is an apocalyptic number.

It is an amenable number.

74445328 is a deficient number, since it is larger than the sum of its proper divisors (69792526).

74445328 is a wasteful number, since it uses less digits than its factorization.

74445328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4652841 (or 4652835 counting only the distinct ones).

The product of its digits is 107520, while the sum is 37.

The square root of 74445328 is about 8628.1706056383. The cubic root of 74445328 is about 420.6741403392.

The spelling of 74445328 in words is "seventy-four million, four hundred forty-five thousand, three hundred twenty-eight".