40180664 has 16 divisors (see below), whose sum is σ = 76293600. Its totient is φ = 19835712.

The previous prime is 40180663. The next prime is 40180669. The reversal of 40180664 is 46608104.

40180664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40180664² = 3228971518961792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40180663) 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, 31157 + ... + 32420.

It is an arithmetic number, because the mean of its divisors is an integer number (4768350).

Almost surely, 2^40180664 is an apocalyptic number.

It is an amenable number.

40180664 is a deficient number, since it is larger than the sum of its proper divisors (36112936).

40180664 is a wasteful number, since it uses less digits than its factorization.

40180664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63662 (or 63658 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 40180664 is about 6338.8219725750. The cubic root of 40180664 is about 342.5093012552.

Adding to 40180664 its reverse (46608104), we get a palindrome (86788768).

The spelling of 40180664 in words is "forty million, one hundred eighty thousand, six hundred sixty-four".