33881016 has 96 divisors (see below), whose sum is σ = 95089680. Its totient is φ = 9999360.

The previous prime is 33880991. The next prime is 33881021. The reversal of 33881016 is 61018833.

33881016 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 2×33881016² = 2295846490384512, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 299776 + ... + 299888.

Almost surely, 2^33881016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33881016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47544840).

33881016 is an abundant number, since it is smaller than the sum of its proper divisors (61208664).

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

33881016 is a wasteful number, since it uses less digits than its factorization.

33881016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 33881016 is about 5820.7401591207. The cubic root of 33881016 is about 323.5828345474.

Adding to 33881016 its reverse (61018833), we get a palindrome (94899849).

The spelling of 33881016 in words is "thirty-three million, eight hundred eighty-one thousand, sixteen".