71944704 has 120 divisors (see below), whose sum is σ = 223795572. Its totient is φ = 22118400.

The previous prime is 71944693. The next prime is 71944721. The reversal of 71944704 is 40744917.

It can be written as a sum of positive squares in 2 ways, for example, as 51151104 + 20793600 = 7152^2 + 4560^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59304 + ... + 60504.

Almost surely, 2^71944704 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 71944704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111897786).

71944704 is an abundant number, since it is smaller than the sum of its proper divisors (151850868).

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

71944704 is a wasteful number, since it uses less digits than its factorization.

71944704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1219 counting only the distinct ones).

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

The square root of 71944704 is about 8482.0224003477. The cubic root of 71944704 is about 415.9102370429.

The spelling of 71944704 in words is "seventy-one million, nine hundred forty-four thousand, seven hundred four".