201870338 has 4 divisors (see below), whose sum is σ = 302805510. Its totient is φ = 100935168.

The previous prime is 201870323. The next prime is 201870341. The reversal of 201870338 is 833078102.

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., 145274809 + 56595529 = 12053^2 + 7523^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50467583 + ... + 50467586.

Almost surely, 2^201870338 is an apocalyptic number.

201870338 is a deficient number, since it is larger than the sum of its proper divisors (100935172).

201870338 is a wasteful number, since it uses less digits than its factorization.

201870338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100935171.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 201870338 is about 14208.1081780792. The cubic root of 201870338 is about 586.6208615380.

The spelling of 201870338 in words is "two hundred one million, eight hundred seventy thousand, three hundred thirty-eight".