40344039 has 12 divisors (see below), whose sum is σ = 58343376. Its totient is φ = 26864352.

The previous prime is 40344037. The next prime is 40344091. The reversal of 40344039 is 93044304.

It is not a de Polignac number, because 40344039 - 2¹ = 40344037 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7459 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (4861948).

Almost surely, 2^40344039 is an apocalyptic number.

40344039 is a deficient number, since it is larger than the sum of its proper divisors (17999337).

40344039 is a wasteful number, since it uses less digits than its factorization.

40344039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286 (or 5283 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 40344039 is about 6351.6957578272. The cubic root of 40344039 is about 342.9728889711.

The spelling of 40344039 in words is "forty million, three hundred forty-four thousand, thirty-nine".