74722736 has 40 divisors (see below), whose sum is σ = 159227904. Its totient is φ = 33687360.

The previous prime is 74722723. The next prime is 74722751. The reversal of 74722736 is 63722747.

It is a self number, because there is not a number n which added to its sum of digits gives 74722736.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20681 + ... + 24023.

Almost surely, 2^74722736 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 74722736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79613952).

74722736 is an abundant number, since it is smaller than the sum of its proper divisors (84505168).

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

74722736 is a wasteful number, since it uses less digits than its factorization.

74722736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489 (or 3483 counting only the distinct ones).

The product of its digits is 98784, while the sum is 38.

The square root of 74722736 is about 8644.2313712672. The cubic root of 74722736 is about 421.1960164689.

The spelling of 74722736 in words is "seventy-four million, seven hundred twenty-two thousand, seven hundred thirty-six".