306423 has 24 divisors (see below), whose sum is σ = 499408. Its totient is φ = 186624.

The previous prime is 306421. The next prime is 306431. The reversal of 306423 is 324603.

It is not a de Polignac number, because 306423 - 2¹ = 306421 is a prime.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 306396 and 306405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306421) 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, 3111 + ... + 3207.

2³⁰⁶⁴²³ is an apocalyptic number.

306423 is a deficient number, since it is larger than the sum of its proper divisors (192985).

306423 is an equidigital number, since it uses as much as digits as its factorization.

306423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 306423 is about 553.5548753285. The cubic root of 306423 is about 67.4176774185.

It can be divided in two parts, 306 and 423, that added together give a 6-th power (729 = 3⁶).

The spelling of 306423 in words is "three hundred six thousand, four hundred twenty-three".