33440105 has 8 divisors (see below), whose sum is σ = 42488712. Its totient is φ = 25178368.

The previous prime is 33440101. The next prime is 33440107. The reversal of 33440105 is 50104433.

It can be written as a sum of positive squares in 4 ways, for example, as 10896601 + 22543504 = 3301^2 + 4748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33440105 - 2² = 33440101 is a prime.

It is a super-2 number, since 2×33440105² = 2236481244822050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33440101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196622 + ... + 196791.

It is an arithmetic number, because the mean of its divisors is an integer number (5311089).

Almost surely, 2^33440105 is an apocalyptic number.

It is an amenable number.

33440105 is a deficient number, since it is larger than the sum of its proper divisors (9048607).

33440105 is a wasteful number, since it uses less digits than its factorization.

33440105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393435.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 33440105 is about 5782.7419966656. The cubic root of 33440105 is about 322.1730516638.

Adding to 33440105 its reverse (50104433), we get a palindrome (83544538).

The spelling of 33440105 in words is "thirty-three million, four hundred forty thousand, one hundred five".