201678338 has 4 divisors (see below), whose sum is σ = 302517510. Its totient is φ = 100839168.

The previous prime is 201678319. The next prime is 201678349. The reversal of 201678338 is 833876102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123054649 + 78623689 = 11093^2 + 8867^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50419583 + ... + 50419586.

Almost surely, 2^201678338 is an apocalyptic number.

201678338 is a deficient number, since it is larger than the sum of its proper divisors (100839172).

201678338 is a wasteful number, since it uses less digits than its factorization.

201678338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100839171.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 201678338 is about 14201.3498654177. The cubic root of 201678338 is about 586.4348230913.

The spelling of 201678338 in words is "two hundred one million, six hundred seventy-eight thousand, three hundred thirty-eight".