3280816 has 40 divisors (see below), whose sum is σ = 7928064. Its totient is φ = 1277760.

The previous prime is 3280811. The next prime is 3280867. The reversal of 3280816 is 6180823.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (3280811) 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, 100 + ... + 2563.

Almost surely, 2^3280816 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 3280816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3964032).

3280816 is an abundant number, since it is smaller than the sum of its proper divisors (4647248).

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

3280816 is a wasteful number, since it uses less digits than its factorization.

3280816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689 (or 2683 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 3280816 is about 1811.3022939311. The cubic root of 3280816 is about 148.5914970073.

It can be divided in two parts, 3280 and 816, that added together give a 12-th power (4096 = 2¹²).

The spelling of 3280816 in words is "three million, two hundred eighty thousand, eight hundred sixteen".