33868656 has 30 divisors (see below), whose sum is σ = 94785600. Its totient is φ = 11289504.

The previous prime is 33868651. The next prime is 33868657. The reversal of 33868656 is 65686833.

It is a super-2 number, since 2×33868656² = 2294171718492672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33868651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117456 + ... + 117743.

It is an arithmetic number, because the mean of its divisors is an integer number (3159520).

Almost surely, 2^33868656 is an apocalyptic number.

33868656 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

33868656 is an abundant number, since it is smaller than the sum of its proper divisors (60916944).

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

33868656 is a wasteful number, since it uses less digits than its factorization.

33868656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235213 (or 235204 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 33868656 is about 5819.6783416268. The cubic root of 33868656 is about 323.5434814351.

The spelling of 33868656 in words is "thirty-three million, eight hundred sixty-eight thousand, six hundred fifty-six".