204013290 has 64 divisors (see below), whose sum is σ = 528998400. Its totient is φ = 50056704.

The previous prime is 204013283. The next prime is 204013291. The reversal of 204013290 is 92310402.

It is not an unprimeable number, because it can be changed into a prime (204013291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158871 + ... + 160149.

It is an arithmetic number, because the mean of its divisors is an integer number (8265600).

Almost surely, 2^204013290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204013290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264499200).

204013290 is an abundant number, since it is smaller than the sum of its proper divisors (324985110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204013290 is a wasteful number, since it uses less digits than its factorization.

204013290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 204013290 is about 14283.3220925666. The cubic root of 204013290 is about 588.6893149256.

Adding to 204013290 its reverse (92310402), we get a palindrome (296323692).

The spelling of 204013290 in words is "two hundred four million, thirteen thousand, two hundred ninety".