2256723 has 24 divisors (see below), whose sum is σ = 3770208. Its totient is φ = 1274112.

The previous prime is 2256721. The next prime is 2256731. The reversal of 2256723 is 3276522.

2256723 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2256723 - 2¹ = 2256721 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 2¹⁸ + 5² + 6⁸ + 7³ + 2¹⁸ + 3⁹ .

2256723 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (2256721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6961 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (157092).

2^2256723 is an apocalyptic number.

2256723 is a deficient number, since it is larger than the sum of its proper divisors (1513485).

2256723 is a wasteful number, since it uses less digits than its factorization.

2256723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 2256723 is about 1502.2393284693. The cubic root of 2256723 is about 131.1674528564.

Adding to 2256723 its sum of digits (27), we get a triangular number (2256750 = T₂₁₂₄).

The spelling of 2256723 in words is "two million, two hundred fifty-six thousand, seven hundred twenty-three".