22252004 has 12 divisors (see below), whose sum is σ = 39024384. Its totient is φ = 11102184.

The previous prime is 22252001. The next prime is 22252033. The reversal of 22252004 is 40025222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22252001) 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, 3764 + ... + 7659.

It is an arithmetic number, because the mean of its divisors is an integer number (3252032).

Almost surely, 2^22252004 is an apocalyptic number.

It is an amenable number.

22252004 is a deficient number, since it is larger than the sum of its proper divisors (16772380).

22252004 is a wasteful number, since it uses less digits than its factorization.

22252004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11914 (or 11912 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 22252004 is about 4717.2029848206. The cubic root of 22252004 is about 281.2697603236.

Adding to 22252004 its reverse (40025222), we get a palindrome (62277226).

The spelling of 22252004 in words is "twenty-two million, two hundred fifty-two thousand, four".