33390189 has 24 divisors (see below), whose sum is σ = 55273920. Its totient is φ = 19027008.

The previous prime is 33390179. The next prime is 33390191. The reversal of 33390189 is 98109333.

It is not a de Polignac number, because 33390189 - 2⁴ = 33390173 is a prime.

It is a super-2 number, since 2×33390189² = 2229809442911442, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33390139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38442 + ... + 39300.

It is an arithmetic number, because the mean of its divisors is an integer number (2303080).

Almost surely, 2^33390189 is an apocalyptic number.

It is an amenable number.

33390189 is a deficient number, since it is larger than the sum of its proper divisors (21883731).

33390189 is a wasteful number, since it uses less digits than its factorization.

33390189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 33390189 is about 5778.4244392395. The cubic root of 33390189 is about 322.0126694088.

The spelling of 33390189 in words is "thirty-three million, three hundred ninety thousand, one hundred eighty-nine".