2009256 has 16 divisors (see below), whose sum is σ = 5023200. Its totient is φ = 669744.

The previous prime is 2009251. The next prime is 2009299. The reversal of 2009256 is 6529002.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 83719 = 2009256 / (2 + 0 + 0 + 9 + 2 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (2009251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41836 + ... + 41883.

It is an arithmetic number, because the mean of its divisors is an integer number (313950).

2^2009256 is an apocalyptic number.

It is an amenable number.

2009256 is an abundant number, since it is smaller than the sum of its proper divisors (3013944).

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

2009256 is a wasteful number, since it uses less digits than its factorization.

2009256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83728 (or 83724 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 2009256 is about 1417.4822750215. The cubic root of 2009256 is about 126.1861697401.

The spelling of 2009256 in words is "two million, nine thousand, two hundred fifty-six".