440131132 has 72 divisors (see below), whose sum is σ = 929006064. Its totient is φ = 181778688.

The previous prime is 440131127. The next prime is 440131147. The reversal of 440131132 is 231131044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 993303 + ... + 993745.

It is an arithmetic number, because the mean of its divisors is an integer number (12902862).

Almost surely, 2^440131132 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 440131132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464503032).

440131132 is an abundant number, since it is smaller than the sum of its proper divisors (488874932).

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

440131132 is a wasteful number, since it uses less digits than its factorization.

440131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 440131132 is about 20979.3024669554. The cubic root of 440131132 is about 760.6660435507. Note that the first 3 decimals are identical.

Adding to 440131132 its reverse (231131044), we get a palindrome (671262176).

The spelling of 440131132 in words is "four hundred forty million, one hundred thirty-one thousand, one hundred thirty-two".