3406240 has 48 divisors (see below), whose sum is σ = 8202600. Its totient is φ = 1336320.

The previous prime is 3406223. The next prime is 3406259. The reversal of 3406240 is 426043.

It can be written as a sum of positive squares in 4 ways, for example, as 2178576 + 1227664 = 1476^2 + 1108^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9586 + ... + 9934.

Almost surely, 2^3406240 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 3406240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4101300).

3406240 is an abundant number, since it is smaller than the sum of its proper divisors (4796360).

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

3406240 is a wasteful number, since it uses less digits than its factorization.

3406240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 3406240 is about 1845.6001733853. The cubic root of 3406240 is about 150.4613941294.

The spelling of 3406240 in words is "three million, four hundred six thousand, two hundred forty".