204426213 has 4 divisors (see below), whose sum is σ = 272568288. Its totient is φ = 136284140.

The previous prime is 204426199. The next prime is 204426217. The reversal of 204426213 is 312624402.

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 204426213 - 2⁵ = 204426181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204426217) 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, 34071033 + ... + 34071038.

It is an arithmetic number, because the mean of its divisors is an integer number (68142072).

Almost surely, 2^204426213 is an apocalyptic number.

It is an amenable number.

204426213 is a deficient number, since it is larger than the sum of its proper divisors (68142075).

204426213 is an equidigital number, since it uses as much as digits as its factorization.

204426213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68142074.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 204426213 is about 14297.7695113609. The cubic root of 204426213 is about 589.0862164246.

The spelling of 204426213 in words is "two hundred four million, four hundred twenty-six thousand, two hundred thirteen".