40521164 has 12 divisors (see below), whose sum is σ = 71101800. Its totient is φ = 20206368.

The previous prime is 40521163. The next prime is 40521211. The reversal of 40521164 is 46112504.

40521164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40521163) 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, 11849 + ... + 14880.

It is an arithmetic number, because the mean of its divisors is an integer number (5925150).

Almost surely, 2^40521164 is an apocalyptic number.

It is an amenable number.

40521164 is a deficient number, since it is larger than the sum of its proper divisors (30580636).

40521164 is a wasteful number, since it uses less digits than its factorization.

40521164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27112 (or 27110 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 40521164 is about 6365.6236143837. The cubic root of 40521164 is about 343.4740814411.

Adding to 40521164 its reverse (46112504), we get a palindrome (86633668).

The spelling of 40521164 in words is "forty million, five hundred twenty-one thousand, one hundred sixty-four".