40044522 has 32 divisors (see below), whose sum is σ = 91736064. Its totient is φ = 11415600.

The previous prime is 40044509. The next prime is 40044527. The reversal of 40044522 is 22544004.

40044522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (40044527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25747 + ... + 27257.

It is an arithmetic number, because the mean of its divisors is an integer number (2866752).

Almost surely, 2^40044522 is an apocalyptic number.

40044522 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40044522 is an abundant number, since it is smaller than the sum of its proper divisors (51691542).

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

40044522 is a wasteful number, since it uses less digits than its factorization.

40044522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40044522 is about 6328.0741146102. The cubic root of 40044522 is about 342.1220282028.

Adding to 40044522 its reverse (22544004), we get a palindrome (62588526).

The spelling of 40044522 in words is "forty million, forty-four thousand, five hundred twenty-two".