74328228 has 108 divisors (see below), whose sum is σ = 214490640. Its totient is φ = 21632832.

The previous prime is 74328211. The next prime is 74328229. The reversal of 74328228 is 82282347.

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

It is a junction number, because it is equal to n+sod(n) for n = 74328192 and 74328201.

It is not an unprimeable number, because it can be changed into a prime (74328229) 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 35 ways as a sum of consecutive naturals, for example, 115275 + ... + 115917.

Almost surely, 2^74328228 is an apocalyptic number.

74328228 is a gapful number since it is divisible by the number (78) 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 74328228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107245320).

74328228 is an abundant number, since it is smaller than the sum of its proper divisors (140162412).

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

74328228 is a wasteful number, since it uses less digits than its factorization.

74328228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 680 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 74328228 is about 8621.3820237825. The cubic root of 74328228 is about 420.4534558254.

The spelling of 74328228 in words is "seventy-four million, three hundred twenty-eight thousand, two hundred twenty-eight".