33808136 has 16 divisors (see below), whose sum is σ = 63848400. Its totient is φ = 16781904.

The previous prime is 33808109. The next prime is 33808147. The reversal of 33808136 is 63180833.

It is a happy number.

It is a super-2 number, since 2×33808136² = 2285980119588992, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14090 + ... + 16313.

It is an arithmetic number, because the mean of its divisors is an integer number (3990525).

Almost surely, 2^33808136 is an apocalyptic number.

It is an amenable number.

33808136 is a deficient number, since it is larger than the sum of its proper divisors (30040264).

33808136 is a wasteful number, since it uses less digits than its factorization.

33808136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30548 (or 30544 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 33808136 is about 5814.4764166690. The cubic root of 33808136 is about 323.3506529379.

Adding to 33808136 its reverse (63180833), we get a palindrome (96988969).

The spelling of 33808136 in words is "thirty-three million, eight hundred eight thousand, one hundred thirty-six".