22540099 has 4 divisors (see below), whose sum is σ = 23726440. Its totient is φ = 21353760.

The previous prime is 22540097. The next prime is 22540121. The reversal of 22540099 is 99004522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22540099 - 2¹ = 22540097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22540099.

It is not an unprimeable number, because it can be changed into a prime (22540093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593142 + ... + 593179.

It is an arithmetic number, because the mean of its divisors is an integer number (5931610).

Almost surely, 2^22540099 is an apocalyptic number.

22540099 is a deficient number, since it is larger than the sum of its proper divisors (1186341).

22540099 is a wasteful number, since it uses less digits than its factorization.

22540099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186340.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 22540099 is about 4747.6414144289. The cubic root of 22540099 is about 282.4784184834.

The spelling of 22540099 in words is "twenty-two million, five hundred forty thousand, ninety-nine".