40115164 has 12 divisors (see below), whose sum is σ = 70349104. Its totient is φ = 20015424.

The previous prime is 40115143. The next prime is 40115171. The reversal of 40115164 is 46151104.

40115164 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, 8349 + ... + 12244.

Almost surely, 2^40115164 is an apocalyptic number.

It is an amenable number.

40115164 is a deficient number, since it is larger than the sum of its proper divisors (30233940).

40115164 is a wasteful number, since it uses less digits than its factorization.

40115164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21084 (or 21082 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 40115164 is about 6333.6532901636. The cubic root of 40115164 is about 342.3230876356.

Adding to 40115164 its reverse (46151104), we get a palindrome (86266268).

The spelling of 40115164 in words is "forty million, one hundred fifteen thousand, one hundred sixty-four".