204659401 has 4 divisors (see below), whose sum is σ = 205326352. Its totient is φ = 203992452.

The previous prime is 204659387. The next prime is 204659407. The reversal of 204659401 is 104956402.

204659401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 204659401 - 2¹¹ = 204657353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204659407) 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, 333015 + ... + 333628.

It is an arithmetic number, because the mean of its divisors is an integer number (51331588).

Almost surely, 2^204659401 is an apocalyptic number.

It is an amenable number.

204659401 is a deficient number, since it is larger than the sum of its proper divisors (666951).

204659401 is an equidigital number, since it uses as much as digits as its factorization.

204659401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666950.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 204659401 is about 14305.9218857087. The cubic root of 204659401 is about 589.3101205840.

The spelling of 204659401 in words is "two hundred four million, six hundred fifty-nine thousand, four hundred one".