22292722 has 16 divisors (see below), whose sum is σ = 34834752. Its totient is φ = 10689840.

The previous prime is 22292713. The next prime is 22292723. The reversal of 22292722 is 22729222.

It is not an unprimeable number, because it can be changed into a prime (22292723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3133 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (2177172).

Almost surely, 2^22292722 is an apocalyptic number.

22292722 is a deficient number, since it is larger than the sum of its proper divisors (12542030).

22292722 is a wasteful number, since it uses less digits than its factorization.

22292722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353.

The product of its digits is 4032, while the sum is 28.

The square root of 22292722 is about 4721.5169172629. The cubic root of 22292722 is about 281.4412169942.

It can be divided in two parts, 2229272 and 2, that multiplied together give a palindrome (4458544).

The spelling of 22292722 in words is "twenty-two million, two hundred ninety-two thousand, seven hundred twenty-two".