33839972 has 12 divisors (see below), whose sum is σ = 61130496. Its totient is φ = 16374120.

The previous prime is 33839921. The next prime is 33839977. The reversal of 33839972 is 27993833.

It is a super-2 number, since 2×33839972² = 2290287409921568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33839977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136328 + ... + 136575.

It is an arithmetic number, because the mean of its divisors is an integer number (5094208).

Almost surely, 2^33839972 is an apocalyptic number.

It is an amenable number.

33839972 is a deficient number, since it is larger than the sum of its proper divisors (27290524).

33839972 is a wasteful number, since it uses less digits than its factorization.

33839972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272938 (or 272936 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 33839972 is about 5817.2134222495. The cubic root of 33839972 is about 323.4521172900.

The spelling of 33839972 in words is "thirty-three million, eight hundred thirty-nine thousand, nine hundred seventy-two".