201382650 has 108 divisors (see below), whose sum is σ = 629451342. Its totient is φ = 46025280.

The previous prime is 201382609. The next prime is 201382661. The reversal of 201382650 is 56283102.

201382650 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 8 + 2 + 650 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 174477681 + 26904969 = 13209^2 + 5187^2 .

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 53 ways as a sum of consecutive naturals, for example, 17484 + ... + 26616.

Almost surely, 2^201382650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201382650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314725671).

201382650 is an abundant number, since it is smaller than the sum of its proper divisors (428068692).

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

201382650 is a wasteful number, since it uses less digits than its factorization.

201382650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9165 (or 9150 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 201382650 is about 14190.9354871340. The cubic root of 201382650 is about 586.1480850536.

The spelling of 201382650 in words is "two hundred one million, three hundred eighty-two thousand, six hundred fifty".