32040220 has 12 divisors (see below), whose sum is σ = 67284504. Its totient is φ = 12816080.

The previous prime is 32040209. The next prime is 32040247. The reversal of 32040220 is 2204023.

It is a self number, because there is not a number n which added to its sum of digits gives 32040220.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 800986 + ... + 801025.

It is an arithmetic number, because the mean of its divisors is an integer number (5607042).

Almost surely, 2^32040220 is an apocalyptic number.

It is an amenable number.

32040220 is an abundant number, since it is smaller than the sum of its proper divisors (35244284).

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

32040220 is a wasteful number, since it uses less digits than its factorization.

32040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602020 (or 1602018 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 32040220 is about 5660.4081124951. The cubic root of 32040220 is about 317.6131656863.

Adding to 32040220 its reverse (2204023), we get a palindrome (34244243).

The spelling of 32040220 in words is "thirty-two million, forty thousand, two hundred twenty".