40504018 has 8 divisors (see below), whose sum is σ = 60952320. Its totient is φ = 20186580.

The previous prime is 40504003. The next prime is 40504019. The reversal of 40504018 is 81040504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40504018.

It is not an unprimeable number, because it can be changed into a prime (40504019) 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 3 ways as a sum of consecutive naturals, for example, 31938 + ... + 33181.

It is an arithmetic number, because the mean of its divisors is an integer number (7619040).

Almost surely, 2^40504018 is an apocalyptic number.

40504018 is a deficient number, since it is larger than the sum of its proper divisors (20448302).

40504018 is a wasteful number, since it uses less digits than its factorization.

40504018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65432.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 40504018 is about 6364.2767067437. The cubic root of 40504018 is about 343.4256290863.

The spelling of 40504018 in words is "forty million, five hundred four thousand, eighteen".