22204629 has 12 divisors (see below), whose sum is σ = 32513676. Its totient is φ = 14599872.

The previous prime is 22204621. The next prime is 22204639. The reversal of 22204629 is 92640222.

It can be written as a sum of positive squares in 2 ways, for example, as 10712529 + 11492100 = 3273^2 + 3390^2 .

It is not a de Polignac number, because 22204629 - 2³ = 22204621 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22204621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16242 + ... + 17555.

It is an arithmetic number, because the mean of its divisors is an integer number (2709473).

Almost surely, 2^22204629 is an apocalyptic number.

It is an amenable number.

22204629 is a deficient number, since it is larger than the sum of its proper divisors (10309047).

22204629 is a wasteful number, since it uses less digits than its factorization.

22204629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33876 (or 33873 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22204629 is about 4712.1787954194. The cubic root of 22204629 is about 281.0700086875.

The spelling of 22204629 in words is "twenty-two million, two hundred four thousand, six hundred twenty-nine".