33133020 has 24 divisors (see below), whose sum is σ = 92772624. Its totient is φ = 8835456.

The previous prime is 33132977. The next prime is 33133027. The reversal of 33133020 is 2033133.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33133027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276049 + ... + 276168.

It is an arithmetic number, because the mean of its divisors is an integer number (3865526).

Almost surely, 2^33133020 is an apocalyptic number.

33133020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33133020 is an abundant number, since it is smaller than the sum of its proper divisors (59639604).

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

33133020 is a wasteful number, since it uses less digits than its factorization.

33133020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552229 (or 552227 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 15.

The square root of 33133020 is about 5756.1289075211. The cubic root of 33133020 is about 321.1838311942.

Adding to 33133020 its reverse (2033133), we get a palindrome (35166153).

The spelling of 33133020 in words is "thirty-three million, one hundred thirty-three thousand, twenty".