22904229 has 8 divisors (see below), whose sum is σ = 31592160. Its totient is φ = 14742896.

The previous prime is 22904227. The next prime is 22904243. The reversal of 22904229 is 92240922.

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 22904229 - 2¹ = 22904227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22904196 and 22904205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22904227) 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, 131547 + ... + 131720.

It is an arithmetic number, because the mean of its divisors is an integer number (3949020).

Almost surely, 2^22904229 is an apocalyptic number.

22904229 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22904229 is a deficient number, since it is larger than the sum of its proper divisors (8687931).

22904229 is a wasteful number, since it uses less digits than its factorization.

22904229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263299.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22904229 is about 4785.8362905557. The cubic root of 22904229 is about 283.9914242269.

The spelling of 22904229 in words is "twenty-two million, nine hundred four thousand, two hundred twenty-nine".