33400105 has 4 divisors (see below), whose sum is σ = 40080132. Its totient is φ = 26720080.

The previous prime is 33400093. The next prime is 33400139. The reversal of 33400105 is 50100433.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17464041 + 15936064 = 4179^2 + 3992^2 .

It is a de Polignac number, because none of the positive numbers 2^k-33400105 is a prime.

It is a super-2 number, since 2×33400105² = 2231134028022050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340006 + ... + 3340015.

It is an arithmetic number, because the mean of its divisors is an integer number (10020033).

Almost surely, 2^33400105 is an apocalyptic number.

It is an amenable number.

33400105 is a deficient number, since it is larger than the sum of its proper divisors (6680027).

33400105 is an equidigital number, since it uses as much as digits as its factorization.

33400105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680026.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 33400105 is about 5779.2823948999. The cubic root of 33400105 is about 322.0445426595.

Adding to 33400105 its reverse (50100433), we get a palindrome (83500538).

The spelling of 33400105 in words is "thirty-three million, four hundred thousand, one hundred five".