22469220 has 72 divisors (see below), whose sum is σ = 69765696. Its totient is φ = 5850432.

The previous prime is 22469219. The next prime is 22469231. The reversal of 22469220 is 2296422.

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 23 ways as a sum of consecutive naturals, for example, 6289 + ... + 9191.

It is an arithmetic number, because the mean of its divisors is an integer number (968968).

Almost surely, 2^22469220 is an apocalyptic number.

22469220 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 22469220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34882848).

22469220 is an abundant number, since it is smaller than the sum of its proper divisors (47296476).

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

22469220 is a wasteful number, since it uses less digits than its factorization.

22469220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961 (or 2956 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22469220 is about 4740.1708829957. The cubic root of 22469220 is about 282.1820161883.

The spelling of 22469220 in words is "twenty-two million, four hundred sixty-nine thousand, two hundred twenty".