74786328 has 80 divisors (see below), whose sum is σ = 211309560. Its totient is φ = 24710400.

The previous prime is 74786311. The next prime is 74786329. The reversal of 74786328 is 82368747.

It is a happy number.

74786328 is a `hidden beast` number, since 7 + 4 + 7 + 8 + 632 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74786329) 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 19 ways as a sum of consecutive naturals, for example, 84448 + ... + 85328.

Almost surely, 2^74786328 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 74786328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105654780).

74786328 is an abundant number, since it is smaller than the sum of its proper divisors (136523232).

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

74786328 is a wasteful number, since it uses less digits than its factorization.

74786328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1017 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 74786328 is about 8647.9088801860. The cubic root of 74786328 is about 421.3154674055.

The spelling of 74786328 in words is "seventy-four million, seven hundred eighty-six thousand, three hundred twenty-eight".