33680198 has 16 divisors (see below), whose sum is σ = 54896640. Its totient is φ = 15438600.

The previous prime is 33680191. The next prime is 33680219. The reversal of 33680198 is 89108633.

It is a super-2 number, since 2×33680198² = 2268711474638408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33680191) by changing a digit.

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, 13118 + ... + 15473.

It is an arithmetic number, because the mean of its divisors is an integer number (3431040).

Almost surely, 2^33680198 is an apocalyptic number.

33680198 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

33680198 is a deficient number, since it is larger than the sum of its proper divisors (21216442).

33680198 is a wasteful number, since it uses less digits than its factorization.

33680198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28643.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 33680198 is about 5803.4643102202. The cubic root of 33680198 is about 322.9422588462.

The spelling of 33680198 in words is "thirty-three million, six hundred eighty thousand, one hundred ninety-eight".