74751312 has 80 divisors (see below), whose sum is σ = 206718912. Its totient is φ = 23193600.

The previous prime is 74751283. The next prime is 74751317. The reversal of 74751312 is 21315747.

It is a self number, because there is not a number n which added to its sum of digits gives 74751312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74751317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81963 + ... + 82869.

Almost surely, 2^74751312 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 74751312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103359456).

74751312 is an abundant number, since it is smaller than the sum of its proper divisors (131967600).

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

74751312 is a wasteful number, since it uses less digits than its factorization.

74751312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1030 counting only the distinct ones).

The product of its digits is 5880, while the sum is 30.

The square root of 74751312 is about 8645.8841074814. The cubic root of 74751312 is about 421.2497018844.

The spelling of 74751312 in words is "seventy-four million, seven hundred fifty-one thousand, three hundred twelve".