40244431 has 16 divisors (see below), whose sum is σ = 43401600. Its totient is φ = 37241568.

The previous prime is 40244387. The next prime is 40244441. The reversal of 40244431 is 13444204.

40244431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40244431 - 2¹⁵ = 40211663 is a prime.

It is a super-2 number, since 2×40244431² = 3239228453027522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244441) 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, 73300 + ... + 73846.

It is an arithmetic number, because the mean of its divisors is an integer number (2712600).

Almost surely, 2^40244431 is an apocalyptic number.

40244431 is a deficient number, since it is larger than the sum of its proper divisors (3157169).

40244431 is a wasteful number, since it uses less digits than its factorization.

40244431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 40244431 is about 6343.8498563569. The cubic root of 40244431 is about 342.6903937243.

Adding to 40244431 its reverse (13444204), we get a palindrome (53688635).

The spelling of 40244431 in words is "forty million, two hundred forty-four thousand, four hundred thirty-one".