74189844 has 72 divisors (see below), whose sum is σ = 196338688. Its totient is φ = 24494400.

The previous prime is 74189833. The next prime is 74189861. The reversal of 74189844 is 44898147.

It is a self number, because there is not a number n which added to its sum of digits gives 74189844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123144 + ... + 123744.

Almost surely, 2^74189844 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 74189844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98169344).

74189844 is an abundant number, since it is smaller than the sum of its proper divisors (122148844).

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

74189844 is a wasteful number, since it uses less digits than its factorization.

74189844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 733 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 74189844 is about 8613.3526573571. The cubic root of 74189844 is about 420.1923608645.

The spelling of 74189844 in words is "seventy-four million, one hundred eighty-nine thousand, eight hundred forty-four".