204632380 has 48 divisors (see below), whose sum is σ = 449757504. Its totient is φ = 78059520.

The previous prime is 204632341. The next prime is 204632423. The reversal of 204632380 is 83236402.

It is a congruent number.

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, 303724 + ... + 304396.

It is an arithmetic number, because the mean of its divisors is an integer number (9369948).

Almost surely, 2^204632380 is an apocalyptic number.

204632380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204632380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224878752).

204632380 is an abundant number, since it is smaller than the sum of its proper divisors (245125124).

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

204632380 is a wasteful number, since it uses less digits than its factorization.

204632380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 204632380 is about 14304.9774554174. The cubic root of 204632380 is about 589.2841840775.

Adding to 204632380 its reverse (83236402), we get a palindrome (287868782).

The spelling of 204632380 in words is "two hundred four million, six hundred thirty-two thousand, three hundred eighty".