33240013 has 8 divisors (see below), whose sum is σ = 33561216. Its totient is φ = 32920800.

The previous prime is 33240001. The next prime is 33240017. The reversal of 33240013 is 31004233.

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 33240013 - 2⁹ = 33239501 is a prime.

It is a super-2 number, since 2×33240013² = 2209796928480338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33240017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76908 + ... + 77338.

It is an arithmetic number, because the mean of its divisors is an integer number (4195152).

Almost surely, 2^33240013 is an apocalyptic number.

It is an amenable number.

33240013 is a deficient number, since it is larger than the sum of its proper divisors (321203).

33240013 is a wasteful number, since it uses less digits than its factorization.

33240013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 33240013 is about 5765.4152495722. The cubic root of 33240013 is about 321.5291815231.

Adding to 33240013 its reverse (31004233), we get a palindrome (64244246).

The spelling of 33240013 in words is "thirty-three million, two hundred forty thousand, thirteen".