3280904 has 32 divisors (see below), whose sum is σ = 7007040. Its totient is φ = 1425600.

The previous prime is 3280903. The next prime is 3280957. The reversal of 3280904 is 4090823.

It is not an unprimeable number, because it can be changed into a prime (3280903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214 + ... + 2834.

It is an arithmetic number, because the mean of its divisors is an integer number (218970).

Almost surely, 2^3280904 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 3280904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3503520).

3280904 is an abundant number, since it is smaller than the sum of its proper divisors (3726136).

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

3280904 is a wasteful number, since it uses less digits than its factorization.

3280904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1657 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 3280904 is about 1811.3265856824. The cubic root of 3280904 is about 148.5928255320.

The spelling of 3280904 in words is "three million, two hundred eighty thousand, nine hundred four".