33201128 has 16 divisors (see below), whose sum is σ = 62708580. Its totient is φ = 16478848.

The previous prime is 33201127. The next prime is 33201139. The reversal of 33201128 is 82110233.

It can be written as a sum of positive squares in 2 ways, for example, as 33200644 + 484 = 5762^2 + 22^2 .

It is a super-2 number, since 2×33201128² = 2204629800944768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33201127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14051 + ... + 16242.

Almost surely, 2^33201128 is an apocalyptic number.

It is an amenable number.

33201128 is a deficient number, since it is larger than the sum of its proper divisors (29507452).

33201128 is a wasteful number, since it uses less digits than its factorization.

33201128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30436 (or 30432 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 33201128 is about 5762.0419991527. The cubic root of 33201128 is about 321.4037549706.

The spelling of 33201128 in words is "thirty-three million, two hundred one thousand, one hundred twenty-eight".