40043504 has 10 divisors (see below), whose sum is σ = 77584320. Its totient is φ = 20021744.

The previous prime is 40043489. The next prime is 40043527. The reversal of 40043504 is 40534004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1251344 + ... + 1251375.

It is an arithmetic number, because the mean of its divisors is an integer number (7758432).

Almost surely, 2^40043504 is an apocalyptic number.

It is an amenable number.

40043504 is a deficient number, since it is larger than the sum of its proper divisors (37540816).

40043504 is a wasteful number, since it uses less digits than its factorization.

40043504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502727 (or 2502721 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40043504 is about 6327.9936788843. The cubic root of 40043504 is about 342.1191290699.

Adding to 40043504 its reverse (40534004), we get a palindrome (80577508).

The spelling of 40043504 in words is "forty million, forty-three thousand, five hundred four".