22574909 has 4 divisors (see below), whose sum is σ = 25799904. Its totient is φ = 19349916.

The previous prime is 22574879. The next prime is 22574911. The reversal of 22574909 is 90947522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22574909 - 2¹² = 22570813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22574989) 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, 1612487 + ... + 1612500.

It is an arithmetic number, because the mean of its divisors is an integer number (6449976).

Almost surely, 2^22574909 is an apocalyptic number.

It is an amenable number.

22574909 is a deficient number, since it is larger than the sum of its proper divisors (3224995).

22574909 is an equidigital number, since it uses as much as digits as its factorization.

22574909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224994.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 22574909 is about 4751.3060309772. The cubic root of 22574909 is about 282.6237596989.

The spelling of 22574909 in words is "twenty-two million, five hundred seventy-four thousand, nine hundred nine".