40515164 has 12 divisors (see below), whose sum is σ = 71412600. Its totient is φ = 20111568.

The previous prime is 40515157. The next prime is 40515173. The reversal of 40515164 is 46151504.

40515164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 35879 + ... + 36990.

It is an arithmetic number, because the mean of its divisors is an integer number (5951050).

Almost surely, 2^40515164 is an apocalyptic number.

It is an amenable number.

40515164 is a deficient number, since it is larger than the sum of its proper divisors (30897436).

40515164 is a wasteful number, since it uses less digits than its factorization.

40515164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73012 (or 73010 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 40515164 is about 6365.1523155381. The cubic root of 40515164 is about 343.4571277803.

Adding to 40515164 its reverse (46151504), we get a palindrome (86666668).

The spelling of 40515164 in words is "forty million, five hundred fifteen thousand, one hundred sixty-four".