22343620 has 48 divisors (see below), whose sum is σ = 53202240. Its totient is φ = 7814016.

The previous prime is 22343611. The next prime is 22343641. The reversal of 22343620 is 2634322.

22343620 = 554² + 555² + ... + 618².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22343591 and 22343600.

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, 2679 + ... + 7201.

It is an arithmetic number, because the mean of its divisors is an integer number (1108380).

Almost surely, 2^22343620 is an apocalyptic number.

22343620 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 22343620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26601120).

22343620 is an abundant number, since it is smaller than the sum of its proper divisors (30858620).

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

22343620 is a wasteful number, since it uses less digits than its factorization.

22343620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564 (or 4562 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 22343620 is about 4726.9038492442. The cubic root of 22343620 is about 281.6552465910.

Adding to 22343620 its reverse (2634322), we get a palindrome (24977942).

The spelling of 22343620 in words is "twenty-two million, three hundred forty-three thousand, six hundred twenty".