434340 has 72 divisors (see below), whose sum is σ = 1397760. Its totient is φ = 108864.

The previous prime is 434323. The next prime is 434347. The reversal of 434340 is 43434.

It is a super-3 number, since 3×434340³ = 245816333011512000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (434347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3357 + ... + 3483.

2⁴³⁴³⁴⁰ 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 434340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698880).

434340 is an abundant number, since it is smaller than the sum of its proper divisors (963420).

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

434340 is a wasteful number, since it uses less digits than its factorization.

434340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 434340 is about 659.0447632748. The cubic root of 434340 is about 75.7315087368.

Adding to 434340 its reverse (43434), we get a palindrome (477774).

The spelling of 434340 in words is "four hundred thirty-four thousand, three hundred forty".