2256170 has 32 divisors (see below), whose sum is σ = 4693248. Its totient is φ = 764928.

The previous prime is 2256169. The next prime is 2256173. The reversal of 2256170 is 716522.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2256173) 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, 11594 + ... + 11786.

It is an arithmetic number, because the mean of its divisors is an integer number (146664).

2^2256170 is an apocalyptic number.

2256170 is an abundant number, since it is smaller than the sum of its proper divisors (2437078).

2256170 is a wasteful number, since it uses less digits than its factorization.

2256170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2256170 is about 1502.0552586373. The cubic root of 2256170 is about 131.1567379795.

The spelling of 2256170 in words is "two million, two hundred fifty-six thousand, one hundred seventy".