74421936 has 80 divisors (see below), whose sum is σ = 224886400. Its totient is φ = 23499072.

The previous prime is 74421901. The next prime is 74421943. The reversal of 74421936 is 63912447.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74421936.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3675 + ... + 12741.

It is an arithmetic number, because the mean of its divisors is an integer number (2811080).

Almost surely, 2^74421936 is an apocalyptic number.

74421936 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74421936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112443200).

74421936 is an abundant number, since it is smaller than the sum of its proper divisors (150464464).

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

74421936 is a wasteful number, since it uses less digits than its factorization.

74421936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9103 (or 9091 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 74421936 is about 8626.8149394780. The cubic root of 74421936 is about 420.6300747113.

It can be divided in two parts, 74421 and 936, that added together give a palindrome (75357).

The spelling of 74421936 in words is "seventy-four million, four hundred twenty-one thousand, nine hundred thirty-six".