33380856 has 96 divisors (see below), whose sum is σ = 97254000. Its totient is φ = 10596096.

The previous prime is 33380849. The next prime is 33380873. The reversal of 33380856 is 65808333.

It is a super-2 number, since 2×33380856² = 2228563094585472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 33380856.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 457236 + ... + 457308.

Almost surely, 2^33380856 is an apocalyptic number.

33380856 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33380856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48627000).

33380856 is an abundant number, since it is smaller than the sum of its proper divisors (63873144).

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

33380856 is a wasteful number, since it uses less digits than its factorization.

33380856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 33380856 is about 5777.6168097235. The cubic root of 33380856 is about 321.9826643445.

The spelling of 33380856 in words is "thirty-three million, three hundred eighty thousand, eight hundred fifty-six".