22251004 has 24 divisors (see below), whose sum is σ = 40466160. Its totient is φ = 10692864.

The previous prime is 22250999. The next prime is 22251013. The reversal of 22251004 is 40015222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50007 + ... + 50449.

It is an arithmetic number, because the mean of its divisors is an integer number (1686090).

Almost surely, 2^22251004 is an apocalyptic number.

It is an amenable number.

22251004 is a deficient number, since it is larger than the sum of its proper divisors (18215156).

22251004 is a wasteful number, since it uses less digits than its factorization.

22251004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22251004 is about 4717.0969886149. The cubic root of 22251004 is about 281.2655468608.

Adding to 22251004 its reverse (40015222), we get a palindrome (62266226).

The spelling of 22251004 in words is "twenty-two million, two hundred fifty-one thousand, four".