32020506 has 48 divisors (see below), whose sum is σ = 80493504. Its totient is φ = 9009792.

The previous prime is 32020481. The next prime is 32020507. The reversal of 32020506 is 60502023.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (32020507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6546 + ... + 10338.

It is an arithmetic number, because the mean of its divisors is an integer number (1676948).

Almost surely, 2^32020506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32020506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40246752).

32020506 is an abundant number, since it is smaller than the sum of its proper divisors (48472998).

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

32020506 is a wasteful number, since it uses less digits than its factorization.

32020506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875 (or 3872 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 32020506 is about 5658.6664506755. Note that the first 3 decimals coincide. The cubic root of 32020506 is about 317.5480110090.

Adding to 32020506 its reverse (60502023), we get a palindrome (92522529).

The spelling of 32020506 in words is "thirty-two million, twenty thousand, five hundred six".