201840242 has 8 divisors (see below), whose sum is σ = 305700096. Its totient is φ = 99940212.

The previous prime is 201840229. The next prime is 201840259. The reversal of 201840242 is 242048102.

It is a happy number.

201840242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489698 + ... + 490109.

It is an arithmetic number, because the mean of its divisors is an integer number (38212512).

Almost surely, 2^201840242 is an apocalyptic number.

201840242 is a deficient number, since it is larger than the sum of its proper divisors (103859854).

201840242 is a wasteful number, since it uses less digits than its factorization.

201840242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979912.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 201840242 is about 14207.0490250439. The cubic root of 201840242 is about 586.5917078098.

Adding to 201840242 its reverse (242048102), we get a palindrome (443888344).

The spelling of 201840242 in words is "two hundred one million, eight hundred forty thousand, two hundred forty-two".