204772650 has 96 divisors (see below), whose sum is σ = 542697408. Its totient is φ = 50918400.

The previous prime is 204772627. The next prime is 204772679. The reversal of 204772650 is 56277402.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 333744 + ... + 334356.

It is an arithmetic number, because the mean of its divisors is an integer number (5653098).

Almost surely, 2^204772650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204772650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271348704).

204772650 is an abundant number, since it is smaller than the sum of its proper divisors (337924758).

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

204772650 is a wasteful number, since it uses less digits than its factorization.

204772650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 204772650 is about 14309.8794544189. The cubic root of 204772650 is about 589.4187994837.

The spelling of 204772650 in words is "two hundred four million, seven hundred seventy-two thousand, six hundred fifty".