40259944 has 32 divisors (see below), whose sum is σ = 80238600. Its totient is φ = 18872320.

The previous prime is 40259941. The next prime is 40259953. The reversal of 40259944 is 44995204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21511044 + 18748900 = 4638^2 + 4330^2 .

It is not an unprimeable number, because it can be changed into a prime (40259941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52524 + ... + 53284.

Almost surely, 2^40259944 is an apocalyptic number.

It is an amenable number.

40259944 is a deficient number, since it is larger than the sum of its proper divisors (39978656).

40259944 is a wasteful number, since it uses less digits than its factorization.

40259944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1169 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 40259944 is about 6345.0724188145. The cubic root of 40259944 is about 342.7344202974.

The spelling of 40259944 in words is "forty million, two hundred fifty-nine thousand, nine hundred forty-four".