74906144 has 24 divisors (see below), whose sum is σ = 147694428. Its totient is φ = 37396480.

The previous prime is 74906087. The next prime is 74906171. The reversal of 74906144 is 44160947.

It can be written as a sum of positive squares in 2 ways, for example, as 74166544 + 739600 = 8612^2 + 860^2 .

It is a super-2 number, since 2×74906144² = 11221860817897472, 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 in 3 ways as a sum of consecutive naturals, for example, 26864 + ... + 29520.

Almost surely, 2^74906144 is an apocalyptic number.

It is an amenable number.

74906144 is a deficient number, since it is larger than the sum of its proper divisors (72788284).

74906144 is a wasteful number, since it uses less digits than its factorization.

74906144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3548 (or 3540 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 74906144 is about 8654.8335628133. The cubic root of 74906144 is about 421.5403454057.

The spelling of 74906144 in words is "seventy-four million, nine hundred six thousand, one hundred forty-four".