33649189 has 4 divisors (see below), whose sum is σ = 38456224. Its totient is φ = 28842156.

The previous prime is 33649183. The next prime is 33649283. The reversal of 33649189 is 98194633.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 33649189 - 2⁵ = 33649157 is a prime.

It is a super-2 number, since 2×33649189² = 2264535840715442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33649183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2403507 + ... + 2403520.

It is an arithmetic number, because the mean of its divisors is an integer number (9614056).

Almost surely, 2^33649189 is an apocalyptic number.

It is an amenable number.

33649189 is a deficient number, since it is larger than the sum of its proper divisors (4807035).

33649189 is an equidigital number, since it uses as much as digits as its factorization.

33649189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4807034.

The product of its digits is 139968, while the sum is 43.

The square root of 33649189 is about 5800.7921010841. The cubic root of 33649189 is about 322.8431185802.

The spelling of 33649189 in words is "thirty-three million, six hundred forty-nine thousand, one hundred eighty-nine".