204479401 has 6 divisors (see below), whose sum is σ = 237863850. Its totient is φ = 175268016.

The previous prime is 204479399. The next prime is 204479477. The reversal of 204479401 is 104974402.

It can be written as a sum of positive squares in only one way, i.e., 203918400 + 561001 = 14280^2 + 749^2 .

It is not a de Polignac number, because 204479401 - 2¹ = 204479399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204479801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2086476 + ... + 2086573.

It is an arithmetic number, because the mean of its divisors is an integer number (39643975).

Almost surely, 2^204479401 is an apocalyptic number.

It is an amenable number.

204479401 is a deficient number, since it is larger than the sum of its proper divisors (33384449).

204479401 is an equidigital number, since it uses as much as digits as its factorization.

204479401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173063 (or 4173056 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 204479401 is about 14299.6294007922. The cubic root of 204479401 is about 589.1373018509.

The spelling of 204479401 in words is "two hundred four million, four hundred seventy-nine thousand, four hundred one".