423523424 has 96 divisors (see below), whose sum is σ = 898128000. Its totient is φ = 196245504.

The previous prime is 423523421. The next prime is 423523483. The reversal of 423523424 is 424325324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423523421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3885482 + ... + 3885590.

It is an arithmetic number, because the mean of its divisors is an integer number (9355500).

Almost surely, 2^423523424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423523424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449064000).

423523424 is an abundant number, since it is smaller than the sum of its proper divisors (474604576).

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

423523424 is a wasteful number, since it uses less digits than its factorization.

423523424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 272 counting only the distinct ones).

The product of its digits is 23040, while the sum is 29.

The square root of 423523424 is about 20579.6847400537. The cubic root of 423523424 is about 750.9755743080.

Adding to 423523424 its reverse (424325324), we get a palindrome (847848748).

The spelling of 423523424 in words is "four hundred twenty-three million, five hundred twenty-three thousand, four hundred twenty-four".