22624229 has 8 divisors (see below), whose sum is σ = 24348888. Its totient is φ = 20943360.

The previous prime is 22624211. The next prime is 22624243. The reversal of 22624229 is 92242622.

It can be written as a sum of positive squares in 4 ways, for example, as 2356225 + 20268004 = 1535^2 + 4502^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22624229 - 2¹² = 22620133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22624289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9872 + ... + 11945.

It is an arithmetic number, because the mean of its divisors is an integer number (3043611).

Almost surely, 2^22624229 is an apocalyptic number.

It is an amenable number.

22624229 is a deficient number, since it is larger than the sum of its proper divisors (1724659).

22624229 is a wasteful number, since it uses less digits than its factorization.

22624229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21895.

The product of its digits is 6912, while the sum is 29.

The square root of 22624229 is about 4756.4933511990. The cubic root of 22624229 is about 282.8294285259.

The spelling of 22624229 in words is "twenty-two million, six hundred twenty-four thousand, two hundred twenty-nine".