22841220 has 48 divisors (see below), whose sum is σ = 64310400. Its totient is φ = 6057216.

The previous prime is 22841219. The next prime is 22841233. The reversal of 22841220 is 2214822.

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 15 ways as a sum of consecutive naturals, for example, 10984 + ... + 12896.

It is an arithmetic number, because the mean of its divisors is an integer number (1339800).

Almost surely, 2^22841220 is an apocalyptic number.

22841220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22841220 is an abundant number, since it is smaller than the sum of its proper divisors (41469180).

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

22841220 is a wasteful number, since it uses less digits than its factorization.

22841220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124 (or 2122 counting only the distinct ones).

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

The square root of 22841220 is about 4779.2488949625. The cubic root of 22841220 is about 283.7307671310.

The spelling of 22841220 in words is "twenty-two million, eight hundred forty-one thousand, two hundred twenty".