201440894 has 4 divisors (see below), whose sum is σ = 302161344. Its totient is φ = 100720446.

The previous prime is 201440893. The next prime is 201440903. The reversal of 201440894 is 498044102.

201440894 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498044102 = 2 ⋅249022051.

It is a self number, because there is not a number n which added to its sum of digits gives 201440894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201440893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50360222 + ... + 50360225.

It is an arithmetic number, because the mean of its divisors is an integer number (75540336).

Almost surely, 2^201440894 is an apocalyptic number.

201440894 is a deficient number, since it is larger than the sum of its proper divisors (100720450).

201440894 is a wasteful number, since it uses less digits than its factorization.

201440894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100720449.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 201440894 is about 14192.9874938295. The cubic root of 201440894 is about 586.2045882964.

Adding to 201440894 its reverse (498044102), we get a palindrome (699484996).

The spelling of 201440894 in words is "two hundred one million, four hundred forty thousand, eight hundred ninety-four".