22206250 has 96 divisors (see below), whose sum is σ = 50621760. Its totient is φ = 7200000.

The previous prime is 22206229. The next prime is 22206263. The reversal of 22206250 is 5260222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1168741 + ... + 1168759.

It is an arithmetic number, because the mean of its divisors is an integer number (527310).

Almost surely, 2^22206250 is an apocalyptic number.

22206250 is an abundant number, since it is smaller than the sum of its proper divisors (28415510).

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

22206250 is a wasteful number, since it uses less digits than its factorization.

22206250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22206250 is about 4712.3507933939. The cubic root of 22206250 is about 281.0768481533.

Adding to 22206250 its reverse (5260222), we get a palindrome (27466472).

The spelling of 22206250 in words is "twenty-two million, two hundred six thousand, two hundred fifty".