22530909 has 8 divisors (see below), whose sum is σ = 30209760. Its totient is φ = 14936336.

The previous prime is 22530901. The next prime is 22530917. The reversal of 22530909 is 90903522.

22530909 = 262² + 263² + ... + 440².

It is an interprime number because it is at equal distance from previous prime (22530901) and next prime (22530917).

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

It is a cyclic number.

It is not a de Polignac number, because 22530909 - 2³ = 22530901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22530901) 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, 20442 + ... + 21515.

It is an arithmetic number, because the mean of its divisors is an integer number (3776220).

Almost surely, 2^22530909 is an apocalyptic number.

It is an amenable number.

22530909 is a deficient number, since it is larger than the sum of its proper divisors (7678851).

22530909 is a wasteful number, since it uses less digits than its factorization.

22530909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42139.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 22530909 is about 4746.6734667554. The cubic root of 22530909 is about 282.4400227699.

The spelling of 22530909 in words is "twenty-two million, five hundred thirty thousand, nine hundred nine".