33728484 has 12 divisors (see below), whose sum is σ = 78699824. Its totient is φ = 11242824.

The previous prime is 33728447. The next prime is 33728501. The reversal of 33728484 is 48482733.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33728484² = 2275221265876512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405342 + ... + 1405365.

Almost surely, 2^33728484 is an apocalyptic number.

It is an amenable number.

33728484 is an abundant number, since it is smaller than the sum of its proper divisors (44971340).

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

33728484 is a wasteful number, since it uses less digits than its factorization.

33728484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810714 (or 2810712 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 33728484 is about 5807.6229216436. The cubic root of 33728484 is about 323.0965151035.

The spelling of 33728484 in words is "thirty-three million, seven hundred twenty-eight thousand, four hundred eighty-four".