3280540 has 48 divisors (see below), whose sum is σ = 7408800. Its totient is φ = 1216512.

The previous prime is 3280523. The next prime is 3280549. The reversal of 3280540 is 450823.

3280540 = T₂₅₅ + T₂₅₆ + ... + T₃₃₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33772 + ... + 33868.

It is an arithmetic number, because the mean of its divisors is an integer number (154350).

Almost surely, 2^3280540 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 3280540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3704400).

3280540 is an abundant number, since it is smaller than the sum of its proper divisors (4128260).

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

3280540 is a wasteful number, since it uses less digits than its factorization.

3280540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 3280540 is about 1811.2261040522. The cubic root of 3280540 is about 148.5873301168.

The spelling of 3280540 in words is "three million, two hundred eighty thousand, five hundred forty".