2256730 has 32 divisors (see below), whose sum is σ = 4702464. Its totient is φ = 763776.

The previous prime is 2256721. The next prime is 2256731. The reversal of 2256730 is 376522.

2256730 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

2256730 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 2256695 and 2256704.

It is not an unprimeable number, because it can be changed into a prime (2256731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7054 + ... + 7366.

It is an arithmetic number, because the mean of its divisors is an integer number (146952).

2^2256730 is an apocalyptic number.

2256730 is an abundant number, since it is smaller than the sum of its proper divisors (2445734).

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

2256730 is a wasteful number, since it uses less digits than its factorization.

2256730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2256730 is about 1502.2416583227. The cubic root of 2256730 is about 131.1675884765.

The spelling of 2256730 in words is "two million, two hundred fifty-six thousand, seven hundred thirty".