423261 has 12 divisors (see below), whose sum is σ = 617760. Its totient is φ = 279240.

The previous prime is 423259. The next prime is 423277. The reversal of 423261 is 162324.

It is a happy number.

It is not a de Polignac number, because 423261 - 2¹ = 423259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423221) 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, 1000 + ... + 1358.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2⁴²³²⁶¹ is an apocalyptic number.

It is an amenable number.

423261 is a deficient number, since it is larger than the sum of its proper divisors (194499).

423261 is a wasteful number, since it uses less digits than its factorization.

423261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 493 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 423261 is about 650.5851212562. The cubic root of 423261 is about 75.0820435520.

Adding to 423261 its reverse (162324), we get a palindrome (585585).

The spelling of 423261 in words is "four hundred twenty-three thousand, two hundred sixty-one".