40007163 has 16 divisors (see below), whose sum is σ = 61285376. Its totient is φ = 22740480.

The previous prime is 40007147. The next prime is 40007167. The reversal of 40007163 is 36170004.

It is not a de Polignac number, because 40007163 - 2⁴ = 40007147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian 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 in 15 ways as a sum of consecutive naturals, for example, 883 + ... + 8988.

It is an arithmetic number, because the mean of its divisors is an integer number (3830336).

Almost surely, 2^40007163 is an apocalyptic number.

40007163 is a deficient number, since it is larger than the sum of its proper divisors (21278213).

40007163 is a wasteful number, since it uses less digits than its factorization.

40007163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10074.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 40007163 is about 6325.1215798592. The cubic root of 40007163 is about 342.0156023797.

Adding to 40007163 its reverse (36170004), we get a palindrome (76177167).

The spelling of 40007163 in words is "forty million, seven thousand, one hundred sixty-three".