40244031 has 6 divisors (see below), whose sum is σ = 58130280. Its totient is φ = 26829348.

The previous prime is 40244027. The next prime is 40244041. The reversal of 40244031 is 13044204.

It is not a de Polignac number, because 40244031 - 2² = 40244027 is a prime.

It is a super-2 number, since 2×40244031² = 3239164062257922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40243995 and 40244013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2235771 + ... + 2235788.

It is an arithmetic number, because the mean of its divisors is an integer number (9688380).

Almost surely, 2^40244031 is an apocalyptic number.

40244031 is a deficient number, since it is larger than the sum of its proper divisors (17886249).

40244031 is a wasteful number, since it uses less digits than its factorization.

40244031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4471565 (or 4471562 counting only the distinct ones).

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

The square root of 40244031 is about 6343.8183296813. The cubic root of 40244031 is about 342.6892583572.

Adding to 40244031 its reverse (13044204), we get a palindrome (53288235).

The spelling of 40244031 in words is "forty million, two hundred forty-four thousand, thirty-one".