40531244 has 24 divisors (see below), whose sum is σ = 79709280. Its totient is φ = 17892864.

The previous prime is 40531217. The next prime is 40531259. The reversal of 40531244 is 44213504.

40531244 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 (23).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15749 + ... + 18140.

It is an arithmetic number, because the mean of its divisors is an integer number (3321220).

Almost surely, 2^40531244 is an apocalyptic number.

It is an amenable number.

40531244 is a deficient number, since it is larger than the sum of its proper divisors (39178036).

40531244 is a wasteful number, since it uses less digits than its factorization.

40531244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33929 (or 33927 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 40531244 is about 6366.4153179006. The cubic root of 40531244 is about 343.5025598242.

Adding to 40531244 its reverse (44213504), we get a palindrome (84744748).

The spelling of 40531244 in words is "forty million, five hundred thirty-one thousand, two hundred forty-four".