33840049 has 2 divisors, whose sum is σ = 33840050. Its totient is φ = 33840048.

The previous prime is 33840029. The next prime is 33840073. The reversal of 33840049 is 94004833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33408400 + 431649 = 5780^2 + 657^2 .

It is a cyclic number.

It is not a de Polignac number, because 33840049 - 2⁷ = 33839921 is a prime.

It is a super-2 number, since 2×33840049² = 2290297832644802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33840049.

It is not a weakly prime, because it can be changed into another prime (33840019) 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 as a sum of consecutive naturals, namely, 16920024 + 16920025.

It is an arithmetic number, because the mean of its divisors is an integer number (16920025).

Almost surely, 2^33840049 is an apocalyptic number.

It is an amenable number.

33840049 is a deficient number, since it is larger than the sum of its proper divisors (1).

33840049 is an equidigital number, since it uses as much as digits as its factorization.

33840049 is an odious number, because the sum of its binary digits is odd.

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

The square root of 33840049 is about 5817.2200405348. The cubic root of 33840049 is about 323.4523626192.

The spelling of 33840049 in words is "thirty-three million, eight hundred forty thousand, forty-nine".