22239750 has 64 divisors (see below), whose sum is σ = 59806656. Its totient is φ = 5472000.

The previous prime is 22239743. The next prime is 22239761. The reversal of 22239750 is 5793222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 8610 + ... + 10890.

It is an arithmetic number, because the mean of its divisors is an integer number (934479).

Almost surely, 2^22239750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22239750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29903328).

22239750 is an abundant number, since it is smaller than the sum of its proper divisors (37566906).

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

22239750 is a wasteful number, since it uses less digits than its factorization.

22239750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314 (or 2304 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 22239750 is about 4715.9039430421. The cubic root of 22239750 is about 281.2181198433.

The spelling of 22239750 in words is "twenty-two million, two hundred thirty-nine thousand, seven hundred fifty".