72401032 has 16 divisors (see below), whose sum is σ = 148093200. Its totient is φ = 32909520.

The previous prime is 72401029. The next prime is 72401041. The reversal of 72401032 is 23010427.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411282 + ... + 411457.

It is an arithmetic number, because the mean of its divisors is an integer number (9255825).

Almost surely, 2^72401032 is an apocalyptic number.

It is an amenable number.

72401032 is an abundant number, since it is smaller than the sum of its proper divisors (75692168).

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

72401032 is a wasteful number, since it uses less digits than its factorization.

72401032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822756 (or 822752 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 72401032 is about 8508.8795972208. The cubic root of 72401032 is about 416.7877240426.

Adding to 72401032 its reverse (23010427), we get a palindrome (95411459).

It can be divided in two parts, 72 and 401032, that added together give a palindrome (401104).

The spelling of 72401032 in words is "seventy-two million, four hundred one thousand, thirty-two".