22570409 has 2 divisors, whose sum is σ = 22570410. Its totient is φ = 22570408.

The previous prime is 22570351. The next prime is 22570417. The reversal of 22570409 is 90407522.

22570409 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13249600 + 9320809 = 3640^2 + 3053^2 .

It is a cyclic number.

It is not a de Polignac number, because 22570409 - 2²⁰ = 21521833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22570109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11285204 + 11285205.

It is an arithmetic number, because the mean of its divisors is an integer number (11285205).

Almost surely, 2^22570409 is an apocalyptic number.

It is an amenable number.

22570409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22570409 is an equidigital number, since it uses as much as digits as its factorization.

22570409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 22570409 is about 4750.8324533707. The cubic root of 22570409 is about 282.6049793879.

The spelling of 22570409 in words is "twenty-two million, five hundred seventy thousand, four hundred nine".