33978282 has 16 divisors (see below), whose sum is σ = 73184160. Its totient is φ = 10454832.

The previous prime is 33978271. The next prime is 33978283. The reversal of 33978282 is 28287933.

33978282 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (33978283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217732 + ... + 217887.

It is an arithmetic number, because the mean of its divisors is an integer number (4574010).

Almost surely, 2^33978282 is an apocalyptic number.

33978282 is an abundant number, since it is smaller than the sum of its proper divisors (39205878).

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

33978282 is a wasteful number, since it uses less digits than its factorization.

33978282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435637.

The product of its digits is 145152, while the sum is 42.

The square root of 33978282 is about 5829.0892942208. The cubic root of 33978282 is about 323.8921871129.

The spelling of 33978282 in words is "thirty-three million, nine hundred seventy-eight thousand, two hundred eighty-two".