33988136 has 32 divisors (see below), whose sum is σ = 78435840. Its totient is φ = 13445568.

The previous prime is 33988127. The next prime is 33988153. The reversal of 33988136 is 63188933.

It is a junction number, because it is equal to n+sod(n) for n = 33988093 and 33988102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22616 + ... + 24071.

It is an arithmetic number, because the mean of its divisors is an integer number (2451120).

Almost surely, 2^33988136 is an apocalyptic number.

It is an amenable number.

33988136 is an abundant number, since it is smaller than the sum of its proper divisors (44447704).

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

33988136 is a wasteful number, since it uses less digits than its factorization.

33988136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46713 (or 46709 counting only the distinct ones).

The product of its digits is 93312, while the sum is 41.

The square root of 33988136 is about 5829.9344764757. The cubic root of 33988136 is about 323.9234946123.

The spelling of 33988136 in words is "thirty-three million, nine hundred eighty-eight thousand, one hundred thirty-six".