22400205 has 16 divisors (see below), whose sum is σ = 36674880. Its totient is φ = 11668608.

The previous prime is 22400173. The next prime is 22400219. The reversal of 22400205 is 50200422.

It is not a de Polignac number, because 22400205 - 2⁵ = 22400173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16720 + ... + 18009.

It is an arithmetic number, because the mean of its divisors is an integer number (2292180).

Almost surely, 2^22400205 is an apocalyptic number.

It is an amenable number.

22400205 is a deficient number, since it is larger than the sum of its proper divisors (14274675).

22400205 is a wasteful number, since it uses less digits than its factorization.

22400205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34780.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 22400205 is about 4732.8854835079. The cubic root of 22400205 is about 281.8928092182.

Adding to 22400205 its reverse (50200422), we get a palindrome (72600627).

The spelling of 22400205 in words is "twenty-two million, four hundred thousand, two hundred five".