22452329 has 4 divisors (see below), whose sum is σ = 22485060. Its totient is φ = 22419600.

The previous prime is 22452289. The next prime is 22452361. The reversal of 22452329 is 92325422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7645225 + 14807104 = 2765^2 + 3848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22452329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22452389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15314 + ... + 16715.

It is an arithmetic number, because the mean of its divisors is an integer number (5621265).

Almost surely, 2^22452329 is an apocalyptic number.

It is an amenable number.

22452329 is a deficient number, since it is larger than the sum of its proper divisors (32731).

22452329 is an equidigital number, since it uses as much as digits as its factorization.

22452329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32730.

The product of its digits is 8640, while the sum is 29.

The square root of 22452329 is about 4738.3888612059. The cubic root of 22452329 is about 282.1112893409. Note that the first 3 decimals are identical.

The spelling of 22452329 in words is "twenty-two million, four hundred fifty-two thousand, three hundred twenty-nine".