2630256 has 40 divisors (see below), whose sum is σ = 6983184. Its totient is φ = 852480.

The previous prime is 2630239. The next prime is 2630281. The reversal of 2630256 is 6520362.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 2516.

2^2630256 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 2630256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3491592).

2630256 is an abundant number, since it is smaller than the sum of its proper divisors (4352928).

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

2630256 is a wasteful number, since it uses less digits than its factorization.

2630256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2630256 is about 1621.8064002833. The cubic root of 2630256 is about 138.0382166788.

The spelling of 2630256 in words is "two million, six hundred thirty thousand, two hundred fifty-six".