423380 has 12 divisors (see below), whose sum is σ = 889140. Its totient is φ = 169344.

The previous prime is 423347. The next prime is 423389. The reversal of 423380 is 83324.

It can be written as a sum of positive squares in 2 ways, for example, as 309136 + 114244 = 556^2 + 338^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 21169 = 423380 / (4 + 2 + 3 + 3 + 8 + 0).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 423380.

It is not an unprimeable number, because it can be changed into a prime (423389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10565 + ... + 10604.

It is an arithmetic number, because the mean of its divisors is an integer number (74095).

2⁴²³³⁸⁰ is an apocalyptic number.

It is an amenable number.

423380 is an abundant number, since it is smaller than the sum of its proper divisors (465760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423380 is a wasteful number, since it uses less digits than its factorization.

423380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21178 (or 21176 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 423380 is about 650.6765709629. The cubic root of 423380 is about 75.0890793416.

The spelling of 423380 in words is "four hundred twenty-three thousand, three hundred eighty".