3280224 has 48 divisors (see below), whose sum is σ = 8805888. Its totient is φ = 1068672.

The previous prime is 3280213. The next prime is 3280229. The reversal of 3280224 is 4220823.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3280224.

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 7 ways as a sum of consecutive naturals, for example, 4149 + ... + 4875.

It is an arithmetic number, because the mean of its divisors is an integer number (183456).

Almost surely, 2^3280224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3280224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4402944).

3280224 is an abundant number, since it is smaller than the sum of its proper divisors (5525664).

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

3280224 is a wasteful number, since it uses less digits than its factorization.

3280224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3280224 is about 1811.1388682263. The cubic root of 3280224 is about 148.5825590421.

The spelling of 3280224 in words is "three million, two hundred eighty thousand, two hundred twenty-four".