33401342209 has 16 divisors (see below), whose sum is σ = 35046864720. Its totient is φ = 31789255680.

The previous prime is 33401342153. The next prime is 33401342213. The reversal of 33401342209 is 90224310433.

It can be written as a sum of positive squares in 8 ways, for example, as 977937984 + 32423404225 = 31272^2 + 180065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33401342209 is a prime.

It is a super-2 number, since 2×33401342209² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33401342269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4825419 + ... + 4832335.

It is an arithmetic number, because the mean of its divisors is an integer number (2190429045).

Almost surely, 2^33401342209 is an apocalyptic number.

It is an amenable number.

33401342209 is a deficient number, since it is larger than the sum of its proper divisors (1645522511).

33401342209 is a wasteful number, since it uses less digits than its factorization.

33401342209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 33401342209 in words is "thirty-three billion, four hundred one million, three hundred forty-two thousand, two hundred nine".