22323213 has 24 divisors (see below), whose sum is σ = 35324640. Its totient is φ = 13472160.

The previous prime is 22323199. The next prime is 22323239. The reversal of 22323213 is 31232322.

It is a happy number.

It is not a de Polignac number, because 22323213 - 2⁸ = 22322957 is a prime.

It is a super-3 number, since 3×22323213³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22323253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43603 + ... + 44111.

It is an arithmetic number, because the mean of its divisors is an integer number (1471860).

Almost surely, 2^22323213 is an apocalyptic number.

It is an amenable number.

22323213 is a deficient number, since it is larger than the sum of its proper divisors (13001427).

22323213 is a wasteful number, since it uses less digits than its factorization.

22323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 966 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 22323213 is about 4724.7447550106. The cubic root of 22323213 is about 281.5694728242.

Adding to 22323213 its reverse (31232322), we get a palindrome (53555535).

It can be divided in two parts, 2232 and 3213, that added together give a palindrome (5445).

The spelling of 22323213 in words is "twenty-two million, three hundred twenty-three thousand, two hundred thirteen".