423256 has 16 divisors (see below), whose sum is σ = 800640. Its totient is φ = 209760.

The previous prime is 423251. The next prime is 423257. The reversal of 423256 is 652324.

It is a happy number.

It is a d-powerful number, because it can be written as 4⁶ + 2 + 2¹¹ + 3¹⁰ + 5⁷ + 6⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423251) 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, 1390 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (50040).

2⁴²³²⁵⁶ is an apocalyptic number.

It is an amenable number.

423256 is a deficient number, since it is larger than the sum of its proper divisors (377384).

423256 is a wasteful number, since it uses less digits than its factorization.

423256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 470 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 423256 is about 650.5812785502. The cubic root of 423256 is about 75.0817479017.

The spelling of 423256 in words is "four hundred twenty-three thousand, two hundred fifty-six".