33680404 has 24 divisors (see below), whose sum is σ = 60046560. Its totient is φ = 16527264.

The previous prime is 33680401. The next prime is 33680419. The reversal of 33680404 is 40408633.

It is a super-2 number, since 2×33680404² = 2268739227206432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33680401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75807 + ... + 76249.

It is an arithmetic number, because the mean of its divisors is an integer number (2501940).

Almost surely, 2^33680404 is an apocalyptic number.

It is an amenable number.

33680404 is a deficient number, since it is larger than the sum of its proper divisors (26366156).

33680404 is a wasteful number, since it uses less digits than its factorization.

33680404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 33680404 is about 5803.4820582130. The cubic root of 33680404 is about 322.9429172546.

The spelling of 33680404 in words is "thirty-three million, six hundred eighty thousand, four hundred four".