33800449 has 4 divisors (see below), whose sum is σ = 35579440. Its totient is φ = 32021460.

The previous prime is 33800443. The next prime is 33800453. The reversal of 33800449 is 94400833.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94400833 = 1447 ⋅65239.

It is not a de Polignac number, because 33800449 - 2⁷ = 33800321 is a prime.

It is a super-2 number, since 2×33800449² = 2284940705203202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33800449.

It is not an unprimeable number, because it can be changed into a prime (33800443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889467 + ... + 889504.

It is an arithmetic number, because the mean of its divisors is an integer number (8894860).

Almost surely, 2^33800449 is an apocalyptic number.

It is an amenable number.

33800449 is a deficient number, since it is larger than the sum of its proper divisors (1778991).

33800449 is a wasteful number, since it uses less digits than its factorization.

33800449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778990.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 33800449 is about 5813.8153565451. The cubic root of 33800449 is about 323.3261441937.

The spelling of 33800449 in words is "thirty-three million, eight hundred thousand, four hundred forty-nine".