3500256 has 72 divisors (see below), whose sum is σ = 9793224. Its totient is φ = 1094400.

The previous prime is 3500251. The next prime is 3500261. The reversal of 3500256 is 6520053.

It is an interprime number because it is at equal distance from previous prime (3500251) and next prime (3500261).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3500251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34606 + ... + 34706.

It is an arithmetic number, because the mean of its divisors is an integer number (136017).

Almost surely, 2^3500256 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 3500256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4896612).

3500256 is an abundant number, since it is smaller than the sum of its proper divisors (6292968).

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

3500256 is a wasteful number, since it uses less digits than its factorization.

3500256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 3500256 is about 1870.8971110139. The cubic root of 3500256 is about 151.8331502501.

The spelling of 3500256 in words is "three million, five hundred thousand, two hundred fifty-six".