40013922 has 16 divisors (see below), whose sum is σ = 86184000. Its totient is φ = 12311952.

The previous prime is 40013917. The next prime is 40013947. The reversal of 40013922 is 22931004.

It is a super-2 number, since 2×40013922² = 3202227907644168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256422 + ... + 256577.

It is an arithmetic number, because the mean of its divisors is an integer number (5386500).

Almost surely, 2^40013922 is an apocalyptic number.

40013922 is an abundant number, since it is smaller than the sum of its proper divisors (46170078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40013922 is a wasteful number, since it uses less digits than its factorization.

40013922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513017.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40013922 is about 6325.6558553244. The cubic root of 40013922 is about 342.0348618749.

Adding to 40013922 its reverse (22931004), we get a palindrome (62944926).

The spelling of 40013922 in words is "forty million, thirteen thousand, nine hundred twenty-two".