33142768 has 20 divisors (see below), whose sum is σ = 64303920. Its totient is φ = 16548224.

The previous prime is 33142763. The next prime is 33142777. The reversal of 33142768 is 86724133.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33142763) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19821 + ... + 21427.

It is an arithmetic number, because the mean of its divisors is an integer number (3215196).

Almost surely, 2^33142768 is an apocalyptic number.

It is an amenable number.

33142768 is a deficient number, since it is larger than the sum of its proper divisors (31161152).

33142768 is a wasteful number, since it uses less digits than its factorization.

33142768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904 (or 2898 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 33142768 is about 5756.9755948762. The cubic root of 33142768 is about 321.2153263914.

The spelling of 33142768 in words is "thirty-three million, one hundred forty-two thousand, seven hundred sixty-eight".