22250004 has 24 divisors (see below), whose sum is σ = 59333568. Its totient is φ = 6357120.

The previous prime is 22249979. The next prime is 22250017. The reversal of 22250004 is 40005222.

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, 132357 + ... + 132524.

It is an arithmetic number, because the mean of its divisors is an integer number (2472232).

Almost surely, 2^22250004 is an apocalyptic number.

It is an amenable number.

22250004 is an abundant number, since it is smaller than the sum of its proper divisors (37083564).

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

22250004 is a wasteful number, since it uses less digits than its factorization.

22250004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264895 (or 264893 counting only the distinct ones).

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

The square root of 22250004 is about 4716.9909900274. The cubic root of 22250004 is about 281.2613332717.

Adding to 22250004 its reverse (40005222), we get a palindrome (62255226).

The spelling of 22250004 in words is "twenty-two million, two hundred fifty thousand, four".