424406 has 4 divisors (see below), whose sum is σ = 636612. Its totient is φ = 212202.

The previous prime is 424397. The next prime is 424423. The reversal of 424406 is 604424.

424406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

424406 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 as a sum of consecutive naturals, namely, 106100 + ... + 106103.

It is an arithmetic number, because the mean of its divisors is an integer number (159153).

2⁴²⁴⁴⁰⁶ is an apocalyptic number.

424406 is a deficient number, since it is larger than the sum of its proper divisors (212206).

424406 is a wasteful number, since it uses less digits than its factorization.

424406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212205.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 424406 is about 651.4645040215. The cubic root of 424406 is about 75.1496862402.

The spelling of 424406 in words is "four hundred twenty-four thousand, four hundred six".