40044132 has 30 divisors (see below), whose sum is σ = 104684118. Its totient is φ = 13347936.

The previous prime is 40044131. The next prime is 40044139. The reversal of 40044132 is 23144004.

It can be written as a sum of positive squares in only one way, i.e., 32558436 + 7485696 = 5706^2 + 2736^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40044131) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 61473 + ... + 62120.

Almost surely, 2^40044132 is an apocalyptic number.

It is an amenable number.

40044132 is an abundant number, since it is smaller than the sum of its proper divisors (64639986).

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

40044132 is a wasteful number, since it uses less digits than its factorization.

40044132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123609 (or 123598 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40044132 is about 6328.0432994726. The cubic root of 40044132 is about 342.1209175388.

Adding to 40044132 its reverse (23144004), we get a palindrome (63188136).

The spelling of 40044132 in words is "forty million, forty-four thousand, one hundred thirty-two".