204115650 has 48 divisors (see below), whose sum is σ = 507315744. Its totient is φ = 54311680.

The previous prime is 204115649. The next prime is 204115729. The reversal of 204115650 is 56511402.

It is a self number, because there is not a number n which added to its sum of digits gives 204115650.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83242 + ... + 85658.

It is an arithmetic number, because the mean of its divisors is an integer number (10569078).

Almost surely, 2^204115650 is an apocalyptic number.

204115650 is an abundant number, since it is smaller than the sum of its proper divisors (303200094).

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

204115650 is a wasteful number, since it uses less digits than its factorization.

204115650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2995 (or 2990 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 204115650 is about 14286.9048432472. The cubic root of 204115650 is about 588.7877532239.

The spelling of 204115650 in words is "two hundred four million, one hundred fifteen thousand, six hundred fifty".