33045020 has 24 divisors (see below), whose sum is σ = 72412704. Its totient is φ = 12643136.

The previous prime is 33045017. The next prime is 33045029. The reversal of 33045020 is 2054033.

It is a self number, because there is not a number n which added to its sum of digits gives 33045020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33045029) 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, 35459 + ... + 36378.

It is an arithmetic number, because the mean of its divisors is an integer number (3017196).

Almost surely, 2^33045020 is an apocalyptic number.

It is an amenable number.

33045020 is an abundant number, since it is smaller than the sum of its proper divisors (39367684).

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

33045020 is a wasteful number, since it uses less digits than its factorization.

33045020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71869 (or 71867 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 33045020 is about 5748.4797990425. The cubic root of 33045020 is about 320.8992285332.

Adding to 33045020 its reverse (2054033), we get a palindrome (35099053).

The spelling of 33045020 in words is "thirty-three million, forty-five thousand, twenty".