434406 has 16 divisors (see below), whose sum is σ = 993024. Its totient is φ = 124104.

The previous prime is 434389. The next prime is 434407. The reversal of 434406 is 604434.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434407) by changing a digit.

434406 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 7 ways as a sum of consecutive naturals, for example, 5130 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (62064).

2⁴³⁴⁴⁰⁶ is an apocalyptic number.

434406 is an abundant number, since it is smaller than the sum of its proper divisors (558618).

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

434406 is a wasteful number, since it uses less digits than its factorization.

434406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10355.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 434406 is about 659.0948338441. The cubic root of 434406 is about 75.7353444618.

The spelling of 434406 in words is "four hundred thirty-four thousand, four hundred six".