74180736 has 96 divisors (see below), whose sum is σ = 243984000. Its totient is φ = 21192192.

The previous prime is 74180723. The next prime is 74180749. The reversal of 74180736 is 63708147.

It is an interprime number because it is at equal distance from previous prime (74180723) and next prime (74180749).

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a self number, because there is not a number n which added to its sum of digits gives 74180736.

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 11 ways as a sum of consecutive naturals, for example, 3465 + ... + 12663.

It is an arithmetic number, because the mean of its divisors is an integer number (2541500).

Almost surely, 2^74180736 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 74180736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121992000).

74180736 is an abundant number, since it is smaller than the sum of its proper divisors (169803264).

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

74180736 is a wasteful number, since it uses less digits than its factorization.

74180736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9226 (or 9211 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 74180736 is about 8612.8239271449. The cubic root of 74180736 is about 420.1751650308.

The spelling of 74180736 in words is "seventy-four million, one hundred eighty thousand, seven hundred thirty-six".