22409325 has 24 divisors (see below), whose sum is σ = 41168000. Its totient is φ = 11951280.

The previous prime is 22409323. The next prime is 22409327. The reversal of 22409325 is 52390422.

It is an interprime number because it is at equal distance from previous prime (22409323) and next prime (22409327).

It is not a de Polignac number, because 22409325 - 2¹ = 22409323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22409323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15925 + ... + 17274.

Almost surely, 2^22409325 is an apocalyptic number.

22409325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22409325 is a deficient number, since it is larger than the sum of its proper divisors (18758675).

22409325 is a wasteful number, since it uses less digits than its factorization.

22409325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33218 (or 33207 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 22409325 is about 4733.8488569028. The cubic root of 22409325 is about 281.9310605586.

Adding to 22409325 its reverse (52390422), we get a palindrome (74799747).

The spelling of 22409325 in words is "twenty-two million, four hundred nine thousand, three hundred twenty-five".