3440256 has 96 divisors (see below), whose sum is σ = 10020480. Its totient is φ = 1044480.

The previous prime is 3440243. The next prime is 3440263. The reversal of 3440256 is 6520443.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×3440256² = 23670722691072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110961 + ... + 110991.

It is an arithmetic number, because the mean of its divisors is an integer number (104380).

Almost surely, 2^3440256 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 3440256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5010240).

3440256 is an abundant number, since it is smaller than the sum of its proper divisors (6580224).

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

3440256 is a wasteful number, since it uses less digits than its factorization.

3440256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 3440256 is about 1854.7927107901. The cubic root of 3440256 is about 150.9605908588.

Adding to 3440256 its reverse (6520443), we get a palindrome (9960699).

The spelling of 3440256 in words is "three million, four hundred forty thousand, two hundred fifty-six".