424392 has 16 divisors (see below), whose sum is σ = 1061040. Its totient is φ = 141456.

The previous prime is 424351. The next prime is 424397. The reversal of 424392 is 293424.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 17683 = 424392 / (4 + 2 + 4 + 3 + 9 + 2).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 424392.

It is not an unprimeable number, because it can be changed into a prime (424397) by changing a digit.

424392 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, 8818 + ... + 8865.

It is an arithmetic number, because the mean of its divisors is an integer number (66315).

2⁴²⁴³⁹² is an apocalyptic number.

It is an amenable number.

424392 is an abundant number, since it is smaller than the sum of its proper divisors (636648).

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

424392 is a wasteful number, since it uses less digits than its factorization.

424392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17692 (or 17688 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 424392 is about 651.4537589116. The cubic root of 424392 is about 75.1488599031.

The spelling of 424392 in words is "four hundred twenty-four thousand, three hundred ninety-two".