33342209 has 2 divisors, whose sum is σ = 33342210. Its totient is φ = 33342208.

The previous prime is 33342193. The next prime is 33342229. The reversal of 33342209 is 90224333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 10061584 = 4825^2 + 3172^2 .

It is a cyclic number.

It is not a de Polignac number, because 33342209 - 2⁴ = 33342193 is a prime.

It is a super-2 number, since 2×33342209² = 2223405801999362, which contains 22 as substring.

It is equal to p_2051459 and since 33342209 and 2051459 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (33342229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16671104 + 16671105.

It is an arithmetic number, because the mean of its divisors is an integer number (16671105).

Almost surely, 2^33342209 is an apocalyptic number.

It is an amenable number.

33342209 is a deficient number, since it is larger than the sum of its proper divisors (1).

33342209 is an equidigital number, since it uses as much as digits as its factorization.

33342209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 33342209 is about 5774.2712960165. The cubic root of 33342209 is about 321.8583568735.

The spelling of 33342209 in words is "thirty-three million, three hundred forty-two thousand, two hundred nine".