22322643 has 16 divisors (see below), whose sum is σ = 34268160. Its totient is φ = 12661056.

The previous prime is 22322623. The next prime is 22322653. The reversal of 22322643 is 34622322.

It is a happy number.

It is not a de Polignac number, because 22322643 - 2⁶ = 22322579 is a prime.

It is a super-3 number, since 3×22322643³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22322623) 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, 1003 + ... + 6756.

It is an arithmetic number, because the mean of its divisors is an integer number (2141760).

Almost surely, 2^22322643 is an apocalyptic number.

22322643 is a deficient number, since it is larger than the sum of its proper divisors (11945517).

22322643 is a wasteful number, since it uses less digits than its factorization.

22322643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906.

The product of its digits is 3456, while the sum is 24.

The square root of 22322643 is about 4724.6844339067. The cubic root of 22322643 is about 281.5670762760.

Adding to 22322643 its reverse (34622322), we get a palindrome (56944965).

The spelling of 22322643 in words is "twenty-two million, three hundred twenty-two thousand, six hundred forty-three".