22116624 has 40 divisors (see below), whose sum is σ = 57308832. Its totient is φ = 7349760.

The previous prime is 22116613. The next prime is 22116637. The reversal of 22116624 is 42661122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22116594 and 22116603.

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, 24664 + ... + 25544.

Almost surely, 2^22116624 is an apocalyptic number.

22116624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22116624 is an abundant number, since it is smaller than the sum of its proper divisors (35192208).

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

22116624 is a wasteful number, since it uses less digits than its factorization.

22116624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1409 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 22116624 is about 4702.8314875190. The cubic root of 22116624 is about 280.6981895662.

Adding to 22116624 its reverse (42661122), we get a palindrome (64777746).

The spelling of 22116624 in words is "twenty-two million, one hundred sixteen thousand, six hundred twenty-four".