33889144 has 16 divisors (see below), whose sum is σ = 63643320. Its totient is φ = 16917600.

The previous prime is 33889129. The next prime is 33889157. The reversal of 33889144 is 44198833.

It is a super-2 number, since 2×33889144² = 2296948162105472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33889097 and 33889106.

It is a congruent number.

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, 2587 + ... + 8629.

Almost surely, 2^33889144 is an apocalyptic number.

It is an amenable number.

33889144 is a deficient number, since it is larger than the sum of its proper divisors (29754176).

33889144 is a wasteful number, since it uses less digits than its factorization.

33889144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750 (or 6746 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 33889144 is about 5821.4383102460. The cubic root of 33889144 is about 323.6087081417.

The spelling of 33889144 in words is "thirty-three million, eight hundred eighty-nine thousand, one hundred forty-four".