22113620 has 24 divisors (see below), whose sum is σ = 46614624. Its totient is φ = 8811936.

The previous prime is 22113577. The next prime is 22113643. The reversal of 22113620 is 2631122.

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, 3707 + ... + 7613.

It is an arithmetic number, because the mean of its divisors is an integer number (1942276).

Almost surely, 2^22113620 is an apocalyptic number.

22113620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22113620 is an abundant number, since it is smaller than the sum of its proper divisors (24501004).

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

22113620 is a wasteful number, since it uses less digits than its factorization.

22113620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199 (or 4197 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 22113620 is about 4702.5120946150. The cubic root of 22113620 is about 280.6854803399.

Adding to 22113620 its reverse (2631122), we get a palindrome (24744742).

The spelling of 22113620 in words is "twenty-two million, one hundred thirteen thousand, six hundred twenty".