40504015 has 4 divisors (see below), whose sum is σ = 48604824. Its totient is φ = 32403208.

The previous prime is 40504003. The next prime is 40504019. The reversal of 40504015 is 51040504.

40504015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40504015 is a prime.

It is a super-2 number, since 2×40504015² = 3281150462240450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40503983 and 40504001.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4050397 + ... + 4050406.

It is an arithmetic number, because the mean of its divisors is an integer number (12151206).

Almost surely, 2^40504015 is an apocalyptic number.

40504015 is a deficient number, since it is larger than the sum of its proper divisors (8100809).

40504015 is an equidigital number, since it uses as much as digits as its factorization.

40504015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8100808.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 40504015 is about 6364.2764710531. The cubic root of 40504015 is about 343.4256206075.

Adding to 40504015 its reverse (51040504), we get a palindrome (91544519).

The spelling of 40504015 in words is "forty million, five hundred four thousand, fifteen".