33981792 has 96 divisors (see below), whose sum is σ = 97640928. Its totient is φ = 10285056.

The previous prime is 33981757. The next prime is 33981803. The reversal of 33981792 is 29718933.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90918 + ... + 91290.

It is an arithmetic number, because the mean of its divisors is an integer number (1017093).

Almost surely, 2^33981792 is an apocalyptic number.

33981792 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33981792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48820464).

33981792 is an abundant number, since it is smaller than the sum of its proper divisors (63659136).

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

33981792 is a wasteful number, since it uses less digits than its factorization.

33981792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 464 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 33981792 is about 5829.3903626366. The cubic root of 33981792 is about 323.9033395547.

The spelling of 33981792 in words is "thirty-three million, nine hundred eighty-one thousand, seven hundred ninety-two".