22814220 has 96 divisors (see below), whose sum is σ = 75075840. Its totient is φ = 5103360.

The previous prime is 22814203. The next prime is 22814251. The reversal of 22814220 is 2241822.

It is a happy 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, 7251 + ... + 9909.

It is an arithmetic number, because the mean of its divisors is an integer number (782040).

Almost surely, 2^22814220 is an apocalyptic number.

22814220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22814220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37537920).

22814220 is an abundant number, since it is smaller than the sum of its proper divisors (52261620).

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

22814220 is a wasteful number, since it uses less digits than its factorization.

22814220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695 (or 2693 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 22814220 is about 4776.4233480712. The cubic root of 22814220 is about 283.6189261813.

The spelling of 22814220 in words is "twenty-two million, eight hundred fourteen thousand, two hundred twenty".