204022641 has 4 divisors (see below), whose sum is σ = 272030192. Its totient is φ = 136015092.

The previous prime is 204022631. The next prime is 204022669. The reversal of 204022641 is 146220402.

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 not a de Polignac number, because 204022641 - 2¹⁵ = 203989873 is a prime.

It is a super-2 number, since 2×204022641² = 83250476081229762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204022631) 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, 34003771 + ... + 34003776.

It is an arithmetic number, because the mean of its divisors is an integer number (68007548).

Almost surely, 2^204022641 is an apocalyptic number.

It is an amenable number.

204022641 is a deficient number, since it is larger than the sum of its proper divisors (68007551).

204022641 is an equidigital number, since it uses as much as digits as its factorization.

204022641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68007550.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 204022641 is about 14283.6494286299. The cubic root of 204022641 is about 588.6983090287.

The spelling of 204022641 in words is "two hundred four million, twenty-two thousand, six hundred forty-one".