33132020 has 24 divisors (see below), whose sum is σ = 71459304. Its totient is φ = 12894336.

The previous prime is 33132019. The next prime is 33132053. The reversal of 33132020 is 2023133.

It can be written as a sum of positive squares in 4 ways, for example, as 11806096 + 21325924 = 3436^2 + 4618^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33131986 and 33132004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21647 + ... + 23126.

It is an arithmetic number, because the mean of its divisors is an integer number (2977471).

Almost surely, 2^33132020 is an apocalyptic number.

It is an amenable number.

33132020 is an abundant number, since it is smaller than the sum of its proper divisors (38327284).

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

33132020 is a wasteful number, since it uses less digits than its factorization.

33132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44819 (or 44817 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 33132020 is about 5756.0420429319. The cubic root of 33132020 is about 321.1805999055.

Adding to 33132020 its reverse (2023133), we get a palindrome (35155153).

The spelling of 33132020 in words is "thirty-three million, one hundred thirty-two thousand, twenty".