74978768 has 20 divisors (see below), whose sum is σ = 146419200. Its totient is φ = 37193184.

The previous prime is 74978753. The next prime is 74978773. The reversal of 74978768 is 86787947.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16418 + ... + 20481.

It is an arithmetic number, because the mean of its divisors is an integer number (7320960).

Almost surely, 2^74978768 is an apocalyptic number.

It is an amenable number.

74978768 is a deficient number, since it is larger than the sum of its proper divisors (71440432).

74978768 is a wasteful number, since it uses less digits than its factorization.

74978768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37034 (or 37028 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 56.

The square root of 74978768 is about 8659.0281209845. The cubic root of 74978768 is about 421.6765338676.

The spelling of 74978768 in words is "seventy-four million, nine hundred seventy-eight thousand, seven hundred sixty-eight".