74783904 has 96 divisors (see below), whose sum is σ = 218340864. Its totient is φ = 22256640.

The previous prime is 74783903. The next prime is 74783927. The reversal of 74783904 is 40938747.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74783903) by changing a digit.

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, 37722 + ... + 39654.

It is an arithmetic number, because the mean of its divisors is an integer number (2274384).

Almost surely, 2^74783904 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 74783904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109170432).

74783904 is an abundant number, since it is smaller than the sum of its proper divisors (143556960).

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

74783904 is a wasteful number, since it uses less digits than its factorization.

74783904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 74783904 is about 8647.7687295626. The cubic root of 74783904 is about 421.3109154160.

The spelling of 74783904 in words is "seventy-four million, seven hundred eighty-three thousand, nine hundred four".