2256972 has 36 divisors (see below), whose sum is σ = 5568696. Its totient is φ = 711360.

The previous prime is 2256959. The next prime is 2256973. The reversal of 2256972 is 2796522.

It is a happy number.

2256972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2256973) 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, 4072 + ... + 4592.

It is an arithmetic number, because the mean of its divisors is an integer number (154686).

2^2256972 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 2256972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784348).

2256972 is an abundant number, since it is smaller than the sum of its proper divisors (3311724).

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

2256972 is a wasteful number, since it uses less digits than its factorization.

2256972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 545 counting only the distinct ones).

The product of its digits is 15120, while the sum is 33.

The square root of 2256972 is about 1502.3222024586. The cubic root of 2256972 is about 131.1722768858.

The spelling of 2256972 in words is "two million, two hundred fifty-six thousand, nine hundred seventy-two".