22322250 has 64 divisors (see below), whose sum is σ = 61925760. Its totient is φ = 5950800.

The previous prime is 22322243. The next prime is 22322273. The reversal of 22322250 is 5222322.

It is a super-3 number, since 3×22322250³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5097 + ... + 8403.

It is an arithmetic number, because the mean of its divisors is an integer number (967590).

Almost surely, 2^22322250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22322250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30962880).

22322250 is an abundant number, since it is smaller than the sum of its proper divisors (39603510).

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

22322250 is a wasteful number, since it uses less digits than its factorization.

22322250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333 (or 3317 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22322250 is about 4724.6428436444. The cubic root of 22322250 is about 281.5654238954.

Adding to 22322250 its reverse (5222322), we get a palindrome (27544572).

The spelling of 22322250 in words is "twenty-two million, three hundred twenty-two thousand, two hundred fifty".