40044112 has 20 divisors (see below), whose sum is σ = 82149876. Its totient is φ = 18844160.

The previous prime is 40044089. The next prime is 40044113. The reversal of 40044112 is 21144004.

It can be written as a sum of positive squares in 2 ways, for example, as 27625536 + 12418576 = 5256^2 + 3524^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40044113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73339 + ... + 73882.

Almost surely, 2^40044112 is an apocalyptic number.

It is an amenable number.

40044112 is an abundant number, since it is smaller than the sum of its proper divisors (42105764).

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

40044112 is a wasteful number, since it uses less digits than its factorization.

40044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147246 (or 147240 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 40044112 is about 6328.0417192051. The cubic root of 40044112 is about 342.1208605815.

Adding to 40044112 its reverse (21144004), we get a palindrome (61188116).

The spelling of 40044112 in words is "forty million, forty-four thousand, one hundred twelve".