204323240 has 32 divisors (see below), whose sum is σ = 501521760. Its totient is φ = 74299200.

The previous prime is 204323239. The next prime is 204323261. The reversal of 204323240 is 42323402.

204323240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 231746 + ... + 232625.

It is an arithmetic number, because the mean of its divisors is an integer number (15672555).

Almost surely, 2^204323240 is an apocalyptic number.

204323240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204323240 is an abundant number, since it is smaller than the sum of its proper divisors (297198520).

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

204323240 is a wasteful number, since it uses less digits than its factorization.

204323240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464393 (or 464389 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 204323240 is about 14294.1680415476. The cubic root of 204323240 is about 588.9872888588.

Adding to 204323240 its reverse (42323402), we get a palindrome (246646642).

The spelling of 204323240 in words is "two hundred four million, three hundred twenty-three thousand, two hundred forty".