3280220 has 12 divisors (see below), whose sum is σ = 6888504. Its totient is φ = 1312080.

The previous prime is 3280213. The next prime is 3280229. The reversal of 3280220 is 220823.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81986 + ... + 82025.

It is an arithmetic number, because the mean of its divisors is an integer number (574042).

Almost surely, 2^3280220 is an apocalyptic number.

It is an amenable number.

3280220 is an abundant number, since it is smaller than the sum of its proper divisors (3608284).

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

3280220 is a wasteful number, since it uses less digits than its factorization.

3280220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164020 (or 164018 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 3280220 is about 1811.1377639484. The cubic root of 3280220 is about 148.5824986468.

The spelling of 3280220 in words is "three million, two hundred eighty thousand, two hundred twenty".