204332401 has 24 divisors (see below), whose sum is σ = 271048680. Its totient is φ = 152151552.

The previous prime is 204332369. The next prime is 204332407. The reversal of 204332401 is 104233402.

It can be written as a sum of positive squares in 4 ways, for example, as 77792400 + 126540001 = 8820^2 + 11249^2 .

It is not a de Polignac number, because 204332401 - 2⁵ = 204332369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (204332407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1395 + ... + 20263.

It is an arithmetic number, because the mean of its divisors is an integer number (11293695).

Almost surely, 2^204332401 is an apocalyptic number.

It is an amenable number.

204332401 is a deficient number, since it is larger than the sum of its proper divisors (66716279).

204332401 is a wasteful number, since it uses less digits than its factorization.

204332401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18913 (or 18906 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 204332401 is about 14294.4884833281. The cubic root of 204332401 is about 588.9960913032.

Adding to 204332401 its reverse (104233402), we get a palindrome (308565803).

The spelling of 204332401 in words is "two hundred four million, three hundred thirty-two thousand, four hundred one".