22322790 has 160 divisors (see below), whose sum is σ = 71368704. Its totient is φ = 4898880.

The previous prime is 22322789. The next prime is 22322801. The reversal of 22322790 is 9722322.

It is a super-3 number, since 3×22322790³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 175707 + ... + 175833.

Almost surely, 2^22322790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22322790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35684352).

22322790 is an abundant number, since it is smaller than the sum of its proper divisors (49045914).

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

22322790 is a wasteful number, since it uses less digits than its factorization.

22322790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 22322790 is about 4724.6999904756. The cubic root of 22322790 is about 281.5676943371.

The spelling of 22322790 in words is "twenty-two million, three hundred twenty-two thousand, seven hundred ninety".