204303290 has 16 divisors (see below), whose sum is σ = 368738568. Its totient is φ = 81500736.

The previous prime is 204303269. The next prime is 204303317. The reversal of 204303290 is 92303402.

204303290 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 200137609 + 4165681 = 14147^2 + 2041^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23657 + ... + 31116.

Almost surely, 2^204303290 is an apocalyptic number.

204303290 is a deficient number, since it is larger than the sum of its proper divisors (164435278).

204303290 is a wasteful number, since it uses less digits than its factorization.

204303290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55153.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 204303290 is about 14293.4701874667. The cubic root of 204303290 is about 588.9681187783.

Adding to 204303290 its reverse (92303402), we get a palindrome (296606692).

The spelling of 204303290 in words is "two hundred four million, three hundred three thousand, two hundred ninety".