22731322 has 8 divisors (see below), whose sum is σ = 34117236. Its totient is φ = 11358912.

The previous prime is 22731311. The next prime is 22731323. The reversal of 22731322 is 22313722.

It can be written as a sum of positive squares in 2 ways, for example, as 19193161 + 3538161 = 4381^2 + 1881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22731293 and 22731302.

It is not an unprimeable number, because it can be changed into a prime (22731323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4668 + ... + 8200.

Almost surely, 2^22731322 is an apocalyptic number.

22731322 is a deficient number, since it is larger than the sum of its proper divisors (11385914).

22731322 is a wasteful number, since it uses less digits than its factorization.

22731322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752.

The product of its digits is 1008, while the sum is 22.

The square root of 22731322 is about 4767.7376186195. The cubic root of 22731322 is about 283.2749889861.

The spelling of 22731322 in words is "twenty-two million, seven hundred thirty-one thousand, three hundred twenty-two".