22499329 has 2 divisors, whose sum is σ = 22499330. Its totient is φ = 22499328.

The previous prime is 22499311. The next prime is 22499339. The reversal of 22499329 is 92399422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17833729 + 4665600 = 4223^2 + 2160^2 .

It is a cyclic number.

It is not a de Polignac number, because 22499329 - 2⁵ = 22499297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22499291 and 22499300.

It is not a weakly prime, because it can be changed into another prime (22499339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11249664 + 11249665.

It is an arithmetic number, because the mean of its divisors is an integer number (11249665).

Almost surely, 2^22499329 is an apocalyptic number.

It is an amenable number.

22499329 is a deficient number, since it is larger than the sum of its proper divisors (1).

22499329 is an equidigital number, since it uses as much as digits as its factorization.

22499329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 40.

The square root of 22499329 is about 4743.3457601149. The cubic root of 22499329 is about 282.3080022579.

The spelling of 22499329 in words is "twenty-two million, four hundred ninety-nine thousand, three hundred twenty-nine".