33330081 has 24 divisors (see below), whose sum is σ = 48530560. Its totient is φ = 20328192.

The previous prime is 33330071. The next prime is 33330107. The reversal of 33330081 is 18003333.

It is not a de Polignac number, because 33330081 - 2⁵ = 33330049 is a prime.

It is a super-2 number, since 2×33330081² = 2221788598933122, which contains 22 as substring.

It is a Duffinian number.

33330081 is a modest number, since divided by 30081 gives 333 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33330041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31560 + ... + 32598.

Almost surely, 2^33330081 is an apocalyptic number.

It is an amenable number.

33330081 is a deficient number, since it is larger than the sum of its proper divisors (15200479).

33330081 is a wasteful number, since it uses less digits than its factorization.

33330081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 33330081 is about 5773.2210246967. The cubic root of 33330081 is about 321.8193275504.

The spelling of 33330081 in words is "thirty-three million, three hundred thirty thousand, eighty-one".