33928938 has 24 divisors (see below), whose sum is σ = 73628100. Its totient is φ = 11291904.

The previous prime is 33928931. The next prime is 33928943. The reversal of 33928938 is 83982933.

33928938 is a `hidden beast` number, since 339 + 289 + 38 = 666.

33928938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33907329 + 21609 = 5823^2 + 147^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33928893 and 33928902.

It is not an unprimeable number, because it can be changed into a prime (33928931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15708 + ... + 17736.

Almost surely, 2^33928938 is an apocalyptic number.

33928938 is an abundant number, since it is smaller than the sum of its proper divisors (39699162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33928938 is a wasteful number, since it uses less digits than its factorization.

33928938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2963 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 33928938 is about 5824.8551913331. The cubic root of 33928938 is about 323.7353233956.

The spelling of 33928938 in words is "thirty-three million, nine hundred twenty-eight thousand, nine hundred thirty-eight".