40315415 has 16 divisors (see below), whose sum is σ = 58542912. Its totient is φ = 26018304.

The previous prime is 40315403. The next prime is 40315417. The reversal of 40315415 is 51451304.

40315415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40315415 - 2¹² = 40311319 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 (40315417) 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 15 ways as a sum of consecutive naturals, for example, 33284 + ... + 34473.

It is an arithmetic number, because the mean of its divisors is an integer number (3658932).

Almost surely, 2^40315415 is an apocalyptic number.

40315415 is a deficient number, since it is larger than the sum of its proper divisors (18227497).

40315415 is a wasteful number, since it uses less digits than its factorization.

40315415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67786.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 40315415 is about 6349.4421014763. The cubic root of 40315415 is about 342.8917569633.

Adding to 40315415 its reverse (51451304), we get a palindrome (91766719).

The spelling of 40315415 in words is "forty million, three hundred fifteen thousand, four hundred fifteen".