201284250 has 64 divisors (see below), whose sum is σ = 531992448. Its totient is φ = 50515200.

The previous prime is 201284231. The next prime is 201284257. The reversal of 201284250 is 52482102.

It is a self number, because there is not a number n which added to its sum of digits gives 201284250.

It is not an unprimeable number, because it can be changed into a prime (201284257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4857 + ... + 20643.

It is an arithmetic number, because the mean of its divisors is an integer number (8312382).

Almost surely, 2^201284250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201284250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265996224).

201284250 is an abundant number, since it is smaller than the sum of its proper divisors (330708198).

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

201284250 is a wasteful number, since it uses less digits than its factorization.

201284250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15824 (or 15814 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 201284250 is about 14187.4680616381. The cubic root of 201284250 is about 586.0526012103.

The spelling of 201284250 in words is "two hundred one million, two hundred eighty-four thousand, two hundred fifty".