33120436 has 12 divisors (see below), whose sum is σ = 59959620. Its totient is φ = 15989120.

The previous prime is 33120421. The next prime is 33120467. The reversal of 33120436 is 63402133.

It can be written as a sum of positive squares in 2 ways, for example, as 12816400 + 20304036 = 3580^2 + 4506^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 142645 + ... + 142876.

It is an arithmetic number, because the mean of its divisors is an integer number (4996635).

Almost surely, 2^33120436 is an apocalyptic number.

It is an amenable number.

33120436 is a deficient number, since it is larger than the sum of its proper divisors (26839184).

33120436 is a wasteful number, since it uses less digits than its factorization.

33120436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285554 (or 285552 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 33120436 is about 5755.0357079692. The cubic root of 33120436 is about 321.1431639170.

Adding to 33120436 its reverse (63402133), we get a palindrome (96522569).

The spelling of 33120436 in words is "thirty-three million, one hundred twenty thousand, four hundred thirty-six".