201442250 has 32 divisors (see below), whose sum is σ = 380809728. Its totient is φ = 79784400.

The previous prime is 201442243. The next prime is 201442253. The reversal of 201442250 is 52244102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201442253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21839 + ... + 29661.

It is an arithmetic number, because the mean of its divisors is an integer number (11900304).

Almost surely, 2^201442250 is an apocalyptic number.

201442250 is a deficient number, since it is larger than the sum of its proper divisors (179367478).

201442250 is a wasteful number, since it uses less digits than its factorization.

201442250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7943 (or 7933 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 201442250 is about 14193.0352638187. The cubic root of 201442250 is about 586.2059036395.

Adding to 201442250 its reverse (52244102), we get a palindrome (253686352).

The spelling of 201442250 in words is "two hundred one million, four hundred forty-two thousand, two hundred fifty".