201838564 has 12 divisors (see below), whose sum is σ = 355759600. Its totient is φ = 100192968.

The previous prime is 201838541. The next prime is 201838573. The reversal of 201838564 is 465838102.

It is a happy number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 180954 + ... + 182065.

Almost surely, 2^201838564 is an apocalyptic number.

It is an amenable number.

201838564 is a deficient number, since it is larger than the sum of its proper divisors (153921036).

201838564 is a wasteful number, since it uses less digits than its factorization.

201838564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363162 (or 363160 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 201838564 is about 14206.9899697297. The cubic root of 201838564 is about 586.5900822608.

The spelling of 201838564 in words is "two hundred one million, eight hundred thirty-eight thousand, five hundred sixty-four".