74836224 has 126 divisors (see below), whose sum is σ = 224526246. Its totient is φ = 24883200.

The previous prime is 74836189. The next prime is 74836247. The reversal of 74836224 is 42263847.

It can be written as a sum of positive squares in only one way, i.e., 74649600 + 186624 = 8640^2 + 432^2 .

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

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 13 ways as a sum of consecutive naturals, for example, 186424 + ... + 186824.

Almost surely, 2^74836224 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 74836224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112263123).

74836224 is an abundant number, since it is smaller than the sum of its proper divisors (149690022).

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

74836224 is an frugal number, since it uses more digits than its factorization.

74836224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 406 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 74836224 is about 8650.7932584243. The cubic root of 74836224 is about 421.4091444349.

The spelling of 74836224 in words is "seventy-four million, eight hundred thirty-six thousand, two hundred twenty-four".