72641132 has 48 divisors (see below), whose sum is σ = 135260160. Its totient is φ = 34100352.

The previous prime is 72641131. The next prime is 72641141. The reversal of 72641132 is 23114627.

It is not an unprimeable number, because it can be changed into a prime (72641131) 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, 919469 + ... + 919547.

It is an arithmetic number, because the mean of its divisors is an integer number (2817920).

Almost surely, 2^72641132 is an apocalyptic number.

It is an amenable number.

72641132 is a deficient number, since it is larger than the sum of its proper divisors (62619028).

72641132 is a wasteful number, since it uses less digits than its factorization.

72641132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 268 counting only the distinct ones).

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

The square root of 72641132 is about 8522.9767100468. The cubic root of 72641132 is about 417.2479399320.

Adding to 72641132 its reverse (23114627), we get a palindrome (95755759).

The spelling of 72641132 in words is "seventy-two million, six hundred forty-one thousand, one hundred thirty-two".