32020020 has 36 divisors (see below), whose sum is σ = 97127940. Its totient is φ = 8538624.

The previous prime is 32020013. The next prime is 32020033. The reversal of 32020020 is 2002023.

It can be written as a sum of positive squares in 2 ways, for example, as 11985444 + 20034576 = 3462^2 + 4476^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 32019984 and 32020011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88765 + ... + 89124.

Almost surely, 2^32020020 is an apocalyptic number.

32020020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32020020 is an abundant number, since it is smaller than the sum of its proper divisors (65107920).

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

32020020 is a wasteful number, since it uses less digits than its factorization.

32020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177904 (or 177899 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 32020020 is about 5658.6235075326. The cubic root of 32020020 is about 317.5464044436.

Adding to 32020020 its reverse (2002023), we get a palindrome (34022043).

The spelling of 32020020 in words is "thirty-two million, twenty thousand, twenty".