33806840 has 32 divisors (see below), whose sum is σ = 76340880. Its totient is φ = 13473792.

The previous prime is 33806831. The next prime is 33806869. The reversal of 33806840 is 4860833.

33806840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×33806840² = 2285804861571200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33806797 and 33806806.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10904 + ... + 13656.

Almost surely, 2^33806840 is an apocalyptic number.

It is an amenable number.

33806840 is an abundant number, since it is smaller than the sum of its proper divisors (42534040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33806840 is a wasteful number, since it uses less digits than its factorization.

33806840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071 (or 3067 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 33806840 is about 5814.3649696248. The cubic root of 33806840 is about 323.3465211139.

The spelling of 33806840 in words is "thirty-three million, eight hundred six thousand, eight hundred forty".