434240 has 56 divisors (see below), whose sum is σ = 1097280. Its totient is φ = 163328.

The previous prime is 434237. The next prime is 434243. The reversal of 434240 is 42434.

It is an interprime number because it is at equal distance from previous prime (434237) and next prime (434243).

It is not an unprimeable number, because it can be changed into a prime (434243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7331 + ... + 7389.

2⁴³⁴²⁴⁰ is an apocalyptic number.

434240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548640).

434240 is an abundant number, since it is smaller than the sum of its proper divisors (663040).

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

434240 is a wasteful number, since it uses less digits than its factorization.

434240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 434240 is about 658.9688915268. The cubic root of 434240 is about 75.7256962918.

Adding to 434240 its reverse (42434), we get a palindrome (476674).

The spelling of 434240 in words is "four hundred thirty-four thousand, two hundred forty".