40007164 has 6 divisors (see below), whose sum is σ = 70012544. Its totient is φ = 20003580.

The previous prime is 40007147. The next prime is 40007167. The reversal of 40007164 is 46170004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40007167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000892 + ... + 5000899.

Almost surely, 2^40007164 is an apocalyptic number.

It is an amenable number.

40007164 is a deficient number, since it is larger than the sum of its proper divisors (30005380).

40007164 is a wasteful number, since it uses less digits than its factorization.

40007164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10001795 (or 10001793 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 40007164 is about 6325.1216589090. The cubic root of 40007164 is about 342.0156052294.

Adding to 40007164 its reverse (46170004), we get a palindrome (86177168).

The spelling of 40007164 in words is "forty million, seven thousand, one hundred sixty-four".