22629449 has 2 divisors, whose sum is σ = 22629450. Its totient is φ = 22629448.

The previous prime is 22629433. The next prime is 22629461. The reversal of 22629449 is 94492622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22629049 + 400 = 4757^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 22629449 - 2⁴ = 22629433 is a prime.

It is not a weakly prime, because it can be changed into another prime (22629469) 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 as a sum of consecutive naturals, namely, 11314724 + 11314725.

It is an arithmetic number, because the mean of its divisors is an integer number (11314725).

Almost surely, 2^22629449 is an apocalyptic number.

It is an amenable number.

22629449 is a deficient number, since it is larger than the sum of its proper divisors (1).

22629449 is an equidigital number, since it uses as much as digits as its factorization.

22629449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 38.

The square root of 22629449 is about 4757.0420431188. The cubic root of 22629449 is about 282.8511788963.

It can be divided in two parts, 2262 and 9449, that added together give a palindrome (11711).

The spelling of 22629449 in words is "twenty-two million, six hundred twenty-nine thousand, four hundred forty-nine".