33839742 has 16 divisors (see below), whose sum is σ = 67914000. Its totient is φ = 11240832.

The previous prime is 33839737. The next prime is 33839749. The reversal of 33839742 is 24793833.

It is a super-2 number, since 2×33839742² = 2290256277253128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33839742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33839749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7867 + ... + 11382.

It is an arithmetic number, because the mean of its divisors is an integer number (4244625).

Almost surely, 2^33839742 is an apocalyptic number.

33839742 is an abundant number, since it is smaller than the sum of its proper divisors (34074258).

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

33839742 is a wasteful number, since it uses less digits than its factorization.

33839742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19547.

The product of its digits is 108864, while the sum is 39.

The square root of 33839742 is about 5817.1936533005. The cubic root of 33839742 is about 323.4513844865.

The spelling of 33839742 in words is "thirty-three million, eight hundred thirty-nine thousand, seven hundred forty-two".