71612432 has 40 divisors (see below), whose sum is σ = 153311616. Its totient is φ = 32231936.

The previous prime is 71612419. The next prime is 71612447. The reversal of 71612432 is 23421617.

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, 533 + ... + 11979.

Almost surely, 2^71612432 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 71612432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76655808).

71612432 is an abundant number, since it is smaller than the sum of its proper divisors (81699184).

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

71612432 is a wasteful number, since it uses less digits than its factorization.

71612432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11495 (or 11489 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 71612432 is about 8462.4128946773. The cubic root of 71612432 is about 415.2689638850.

The spelling of 71612432 in words is "seventy-one million, six hundred twelve thousand, four hundred thirty-two".