40544039 has 12 divisors (see below), whose sum is σ = 42179040. Its totient is φ = 38966400.

The previous prime is 40544029. The next prime is 40544041. The reversal of 40544039 is 93044504.

It is not a de Polignac number, because 40544039 - 2¹² = 40539943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40544029) 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, 149474 + ... + 149744.

It is an arithmetic number, because the mean of its divisors is an integer number (3514920).

Almost surely, 2^40544039 is an apocalyptic number.

40544039 is a deficient number, since it is larger than the sum of its proper divisors (1635001).

40544039 is an equidigital number, since it uses as much as digits as its factorization.

40544039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 40544039 is about 6367.4201212108. The cubic root of 40544039 is about 343.5387019244.

It can be divided in two parts, 405 and 44039, that added together give a palindrome (44444).

The spelling of 40544039 in words is "forty million, five hundred forty-four thousand, thirty-nine".