423028 has 12 divisors (see below), whose sum is σ = 783972. Its totient is φ = 199040.

The previous prime is 423019. The next prime is 423043. The reversal of 423028 is 820324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 272484 = 388^2 + 522^2 .

It is a junction number, because it is equal to n+sod(n) for n = 422996 and 423014.

It is a congruent number.

It is an unprimeable number.

423028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043 + ... + 3178.

It is an arithmetic number, because the mean of its divisors is an integer number (65331).

2⁴²³⁰²⁸ is an apocalyptic number.

It is an amenable number.

423028 is a deficient number, since it is larger than the sum of its proper divisors (360944).

423028 is a wasteful number, since it uses less digits than its factorization.

423028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242 (or 6240 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 423028 is about 650.4060270323. The cubic root of 423028 is about 75.0682637745.

It can be divided in two parts, 4 and 23028, that added together give a palindrome (23032).

The spelling of 423028 in words is "four hundred twenty-three thousand, twenty-eight".