22540593 has 8 divisors (see below), whose sum is σ = 31636000. Its totient is φ = 14236128.

The previous prime is 22540591. The next prime is 22540601. The reversal of 22540593 is 39504522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22540593 - 2¹ = 22540591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22540593.

It is not an unprimeable number, because it can be changed into a prime (22540591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197668 + ... + 197781.

It is an arithmetic number, because the mean of its divisors is an integer number (3954500).

Almost surely, 2^22540593 is an apocalyptic number.

It is an amenable number.

22540593 is a deficient number, since it is larger than the sum of its proper divisors (9095407).

22540593 is a wasteful number, since it uses less digits than its factorization.

22540593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395471.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 22540593 is about 4747.6934399769. The cubic root of 22540593 is about 282.4804821141.

The spelling of 22540593 in words is "twenty-two million, five hundred forty thousand, five hundred ninety-three".