33881938 has 8 divisors (see below), whose sum is σ = 50907132. Its totient is φ = 16912896.

The previous prime is 33881927. The next prime is 33881941. The reversal of 33881938 is 83918833.

It is a happy number.

33881938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23299929 + 10582009 = 4827^2 + 3253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×33881938² = 2295971445271688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33881894 and 33881903.

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 3 ways as a sum of consecutive naturals, for example, 12495 + ... + 14962.

Almost surely, 2^33881938 is an apocalyptic number.

33881938 is a deficient number, since it is larger than the sum of its proper divisors (17025194).

33881938 is a wasteful number, since it uses less digits than its factorization.

33881938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28076.

The product of its digits is 124416, while the sum is 43.

The square root of 33881938 is about 5820.8193581316. The cubic root of 33881938 is about 323.5857697276.

It can be divided in two parts, 33881 and 938, that multiplied together give a triangular number (31780378 = T₇₉₇₂).

The spelling of 33881938 in words is "thirty-three million, eight hundred eighty-one thousand, nine hundred thirty-eight".