204802380 has 72 divisors (see below), whose sum is σ = 636408864. Its totient is φ = 53280000.

The previous prime is 204802369. The next prime is 204802391. The reversal of 204802380 is 83208402.

204802380 is a `hidden beast` number, since 204 + 80 + 2 + 380 = 666.

It is an interprime number because it is at equal distance from previous prime (204802369) and next prime (204802391).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6496 + ... + 21255.

It is an arithmetic number, because the mean of its divisors is an integer number (8839012).

Almost surely, 2^204802380 is an apocalyptic number.

204802380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204802380 is an abundant number, since it is smaller than the sum of its proper divisors (431606484).

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

204802380 is a wasteful number, since it uses less digits than its factorization.

204802380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27807 (or 27802 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 204802380 is about 14310.9182095350. The cubic root of 204802380 is about 589.4473231056.

The spelling of 204802380 in words is "two hundred four million, eight hundred two thousand, three hundred eighty".