22540326 has 16 divisors (see below), whose sum is σ = 46299504. Its totient is φ = 7310304.

The previous prime is 22540319. The next prime is 22540339. The reversal of 22540326 is 62304522.

It is a junction number, because it is equal to n+sod(n) for n = 22540296 and 22540305.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 50545 + ... + 50988.

It is an arithmetic number, because the mean of its divisors is an integer number (2893719).

Almost surely, 2^22540326 is an apocalyptic number.

22540326 is an abundant number, since it is smaller than the sum of its proper divisors (23759178).

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

22540326 is a wasteful number, since it uses less digits than its factorization.

22540326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101575.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22540326 is about 4747.6653209762. The cubic root of 22540326 is about 282.4793667547.

Adding to 22540326 its reverse (62304522), we get a palindrome (84844848).

The spelling of 22540326 in words is "twenty-two million, five hundred forty thousand, three hundred twenty-six".