22025604 has 12 divisors (see below), whose sum is σ = 51393104. Its totient is φ = 7341864.

The previous prime is 22025603. The next prime is 22025609. The reversal of 22025604 is 40652022.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (22025603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917722 + ... + 917745.

Almost surely, 2^22025604 is an apocalyptic number.

It is an amenable number.

22025604 is an abundant number, since it is smaller than the sum of its proper divisors (29367500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22025604 is a wasteful number, since it uses less digits than its factorization.

22025604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835474 (or 1835472 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22025604 is about 4693.1443617259. The cubic root of 22025604 is about 280.3125930669.

Adding to 22025604 its reverse (40652022), we get a palindrome (62677626).

The spelling of 22025604 in words is "twenty-two million, twenty-five thousand, six hundred four".