201089828 has 54 divisors (see below), whose sum is σ = 384367074. Its totient is φ = 92035328.

The previous prime is 201089813. The next prime is 201089831. The reversal of 201089828 is 828980102.

It can be written as a sum of positive squares in 3 ways, for example, as 1658944 + 199430884 = 1288^2 + 14122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201089791 and 201089800.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1779500 + ... + 1779612.

Almost surely, 2^201089828 is an apocalyptic number.

It is an amenable number.

201089828 is a deficient number, since it is larger than the sum of its proper divisors (183277246).

201089828 is a wasteful number, since it uses less digits than its factorization.

201089828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 201089828 is about 14180.6145141880. The cubic root of 201089828 is about 585.8638495251.

The spelling of 201089828 in words is "two hundred one million, eighty-nine thousand, eight hundred twenty-eight".