226592809 has 3 divisors (see below), whose sum is σ = 226607863. Its totient is φ = 226577756.

The previous prime is 226592801. The next prime is 226592819. The reversal of 226592809 is 908295622.

The square root of 226592809 is 15053.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 216531225 + 10061584 = 14715^2 + 3172^2 .

It is not a de Polignac number, because 226592809 - 2³ = 226592801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226592801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7527 + ... + 22579.

Almost surely, 2^226592809 is an apocalyptic number.

226592809 is the 15053-rd square number.

226592809 is the 7527-th centered octagonal number.

It is an amenable number.

226592809 is a deficient number, since it is larger than the sum of its proper divisors (15054).

226592809 is an frugal number, since it uses more digits than its factorization.

226592809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30106 (or 15053 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The cubic root of 226592809 is about 609.6520536506.

The spelling of 226592809 in words is "two hundred twenty-six million, five hundred ninety-two thousand, eight hundred nine".