33909668 has 24 divisors (see below), whose sum is σ = 64789368. Its totient is φ = 15434496.

The previous prime is 33909653. The next prime is 33909697. The reversal of 33909668 is 86690933.

It can be written as a sum of positive squares in 4 ways, for example, as 362404 + 33547264 = 602^2 + 5792^2 .

It is a super-2 number, since 2×33909668² = 2299731167740448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671 + ... + 8262.

It is an arithmetic number, because the mean of its divisors is an integer number (2699557).

Almost surely, 2^33909668 is an apocalyptic number.

It is an amenable number.

33909668 is a deficient number, since it is larger than the sum of its proper divisors (30879700).

33909668 is a wasteful number, since it uses less digits than its factorization.

33909668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023 (or 9021 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 33909668 is about 5823.2008380271. The cubic root of 33909668 is about 323.6740231069.

The spelling of 33909668 in words is "thirty-three million, nine hundred nine thousand, six hundred sixty-eight".