201440342 has 8 divisors (see below), whose sum is σ = 304162032. Its totient is φ = 100053000.

The previous prime is 201440303. The next prime is 201440353. The reversal of 201440342 is 243044102.

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

It is a super-2 number, since 2×201440342² = 81156422770153928, which contains 22 as substring.

It is a congruent number.

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, 333209 + ... + 333812.

It is an arithmetic number, because the mean of its divisors is an integer number (38020254).

Almost surely, 2^201440342 is an apocalyptic number.

201440342 is a deficient number, since it is larger than the sum of its proper divisors (102721690).

201440342 is a wasteful number, since it uses less digits than its factorization.

201440342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667174.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 201440342 is about 14192.9680475931. The cubic root of 201440342 is about 586.2040528454.

Adding to 201440342 its reverse (243044102), we get a palindrome (444484444).

The spelling of 201440342 in words is "two hundred one million, four hundred forty thousand, three hundred forty-two".