22341620 has 48 divisors (see below), whose sum is σ = 54649728. Its totient is φ = 7512960.

The previous prime is 22341593. The next prime is 22341637. The reversal of 22341620 is 2614322.

22341620 = T₃₄₉ + T₃₅₀ + ... + T₅₆₀.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22341592 and 22341601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5915 + ... + 8925.

It is an arithmetic number, because the mean of its divisors is an integer number (1138536).

Almost surely, 2^22341620 is an apocalyptic number.

22341620 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 22341620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27324864).

22341620 is an abundant number, since it is smaller than the sum of its proper divisors (32308108).

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

22341620 is a wasteful number, since it uses less digits than its factorization.

22341620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22341620 is about 4726.6922895403. The cubic root of 22341620 is about 281.6468425917.

Adding to 22341620 its reverse (2614322), we get a palindrome (24955942).

The spelling of 22341620 in words is "twenty-two million, three hundred forty-one thousand, six hundred twenty".