22841620 has 24 divisors (see below), whose sum is σ = 48066984. Its totient is φ = 9117696.

The previous prime is 22841593. The next prime is 22841639. The reversal of 22841620 is 2614822.

22841620 = 1227² + 1228² + ... + 1241².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5817744 + 17023876 = 2412^2 + 4126^2 .

It is a super-3 number, since 3×22841620³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12612 + ... + 14308.

It is an arithmetic number, because the mean of its divisors is an integer number (2002791).

Almost surely, 2^22841620 is an apocalyptic number.

22841620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22841620 is an abundant number, since it is smaller than the sum of its proper divisors (25225364).

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

22841620 is a wasteful number, since it uses less digits than its factorization.

22841620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 22841620 is about 4779.2907423592. The cubic root of 22841620 is about 283.7324233713.

The spelling of 22841620 in words is "twenty-two million, eight hundred forty-one thousand, six hundred twenty".