74386944 has 80 divisors (see below), whose sum is σ = 220231440. Its totient is φ = 24791040.

The previous prime is 74386933. The next prime is 74386973. The reversal of 74386944 is 44968347.

It is a self number, because there is not a number n which added to its sum of digits gives 74386944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11134 + ... + 16514.

It is an arithmetic number, because the mean of its divisors is an integer number (2752893).

Almost surely, 2^74386944 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 74386944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110115720).

74386944 is an abundant number, since it is smaller than the sum of its proper divisors (145844496).

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

74386944 is an equidigital number, since it uses as much as digits as its factorization.

74386944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408 (or 5386 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 74386944 is about 8624.7866060558. The cubic root of 74386944 is about 420.5641398728.

The spelling of 74386944 in words is "seventy-four million, three hundred eighty-six thousand, nine hundred forty-four".