74993904 has 80 divisors (see below), whose sum is σ = 218557440. Its totient is φ = 24615360.

The previous prime is 74993899. The next prime is 74993917. The reversal of 74993904 is 40939947.

It is a super-2 number, since 2×74993904² = 11248171274322432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74993904.

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 15 ways as a sum of consecutive naturals, for example, 27649 + ... + 30239.

It is an arithmetic number, because the mean of its divisors is an integer number (2731968).

Almost surely, 2^74993904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74993904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109278720).

74993904 is an abundant number, since it is smaller than the sum of its proper divisors (143563536).

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

74993904 is a wasteful number, since it uses less digits than its factorization.

74993904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675 (or 2663 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 74993904 is about 8659.9020779683. The cubic root of 74993904 is about 421.7049066401.

The spelling of 74993904 in words is "seventy-four million, nine hundred ninety-three thousand, nine hundred four".