22642469 has 2 divisors, whose sum is σ = 22642470. Its totient is φ = 22642468.

The previous prime is 22642463. The next prime is 22642507. The reversal of 22642469 is 96424622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 833569 = 4670^2 + 913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22642469 is a prime.

It is a super-2 number, since 2×22642469² = 1025362804831922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22642463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11321234 + 11321235.

It is an arithmetic number, because the mean of its divisors is an integer number (11321235).

Almost surely, 2^22642469 is an apocalyptic number.

It is an amenable number.

22642469 is a deficient number, since it is larger than the sum of its proper divisors (1).

22642469 is an equidigital number, since it uses as much as digits as its factorization.

22642469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 22642469 is about 4758.4103438018. The cubic root of 22642469 is about 282.9054152483.

The spelling of 22642469 in words is "twenty-two million, six hundred forty-two thousand, four hundred sixty-nine".