22540014 has 24 divisors (see below), whose sum is σ = 55813680. Its totient is φ = 6439968.

The previous prime is 22540009. The next prime is 22540027. The reversal of 22540014 is 41004522.

It is a super-2 number, since 2×22540014² = 1016104462240392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89319 + ... + 89570.

It is an arithmetic number, because the mean of its divisors is an integer number (2325570).

Almost surely, 2^22540014 is an apocalyptic number.

22540014 is an abundant number, since it is smaller than the sum of its proper divisors (33273666).

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

22540014 is a wasteful number, since it uses less digits than its factorization.

22540014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178904 (or 178901 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22540014 is about 4747.6324626070. The cubic root of 22540014 is about 282.4780634022.

Adding to 22540014 its reverse (41004522), we get a palindrome (63544536).

The spelling of 22540014 in words is "twenty-two million, five hundred forty thousand, fourteen".