33680668 has 12 divisors (see below), whose sum is σ = 67361392. Its totient is φ = 14434560.

The previous prime is 33680659. The next prime is 33680719. The reversal of 33680668 is 86608633.

33680668 is an admirable number.

It is a super-2 number, since 2×33680668² = 2268774793852448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33680668.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 601413 + ... + 601468.

Almost surely, 2^33680668 is an apocalyptic number.

It is an amenable number.

33680668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33680668 is a wasteful number, since it uses less digits than its factorization.

33680668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202892 (or 1202890 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 33680668 is about 5803.5048031341. The cubic root of 33680668 is about 322.9437610361.

The spelling of 33680668 in words is "thirty-three million, six hundred eighty thousand, six hundred sixty-eight".