3281740 has 48 divisors (see below), whose sum is σ = 8596224. Its totient is φ = 1022400.

The previous prime is 3281723. The next prime is 3281767. The reversal of 3281740 is 471823.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475 + ... + 2605.

It is an arithmetic number, because the mean of its divisors is an integer number (179088).

Almost surely, 2^3281740 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 3281740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4298112).

3281740 is an abundant number, since it is smaller than the sum of its proper divisors (5314484).

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

3281740 is a wasteful number, since it uses less digits than its factorization.

3281740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3281740 is about 1811.5573410742. The cubic root of 3281740 is about 148.6054453316.

The spelling of 3281740 in words is "three million, two hundred eighty-one thousand, seven hundred forty".