204194380 has 24 divisors (see below), whose sum is σ = 461794032. Its totient is φ = 75394752.

The previous prime is 204194371. The next prime is 204194411. The reversal of 204194380 is 83491402.

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, 392422 + ... + 392941.

It is an arithmetic number, because the mean of its divisors is an integer number (19241418).

Almost surely, 2^204194380 is an apocalyptic number.

204194380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204194380 is an abundant number, since it is smaller than the sum of its proper divisors (257599652).

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

204194380 is a wasteful number, since it uses less digits than its factorization.

204194380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785385 (or 785383 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 204194380 is about 14289.6598979822. The cubic root of 204194380 is about 588.8634444658.

The spelling of 204194380 in words is "two hundred four million, one hundred ninety-four thousand, three hundred eighty".