204569380 has 48 divisors (see below), whose sum is σ = 440858880. Its totient is φ = 79699968.

The previous prime is 204569369. The next prime is 204569399. The reversal of 204569380 is 83965402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265636 + ... + 266404.

It is an arithmetic number, because the mean of its divisors is an integer number (9184560).

Almost surely, 2^204569380 is an apocalyptic number.

204569380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204569380 is an abundant number, since it is smaller than the sum of its proper divisors (236289500).

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

204569380 is a wasteful number, since it uses less digits than its factorization.

204569380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 204569380 is about 14302.7752551734. The cubic root of 204569380 is about 589.2237037272.

The spelling of 204569380 in words is "two hundred four million, five hundred sixty-nine thousand, three hundred eighty".