3490256 has 40 divisors (see below), whose sum is σ = 8433984. Its totient is φ = 1359360.

The previous prime is 3490229. The next prime is 3490271. The reversal of 3490256 is 6520943.

It is a congruent number.

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, 185 + ... + 2648.

Almost surely, 2^3490256 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 3490256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4216992).

3490256 is an abundant number, since it is smaller than the sum of its proper divisors (4943728).

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

3490256 is a wasteful number, since it uses less digits than its factorization.

3490256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2853 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3490256 is about 1868.2226847996. Note that the first 3 decimals coincide. The cubic root of 3490256 is about 151.6884199098.

The spelling of 3490256 in words is "three million, four hundred ninety thousand, two hundred fifty-six".