22117914 has 96 divisors (see below), whose sum is σ = 61669440. Its totient is φ = 5824224.

The previous prime is 22117891. The next prime is 22117933. The reversal of 22117914 is 41971122.

It is a super-2 number, since 2×22117914² = 978404239422792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34077 + ... + 34719.

It is an arithmetic number, because the mean of its divisors is an integer number (642390).

Almost surely, 2^22117914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22117914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30834720).

22117914 is an abundant number, since it is smaller than the sum of its proper divisors (39551526).

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

22117914 is a wasteful number, since it uses less digits than its factorization.

22117914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 668 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 22117914 is about 4702.9686369356. The cubic root of 22117914 is about 280.7036469034.

The spelling of 22117914 in words is "twenty-two million, one hundred seventeen thousand, nine hundred fourteen".