430240 has 24 divisors (see below), whose sum is σ = 1016820. Its totient is φ = 172032.

The previous prime is 430193. The next prime is 430259. The reversal of 430240 is 42034.

It can be written as a sum of positive squares in 2 ways, for example, as 374544 + 55696 = 612^2 + 236^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 430240.

It is a congruent number.

It is an unprimeable number.

430240 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, 1185 + ... + 1504.

2⁴³⁰²⁴⁰ is an apocalyptic number.

430240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

430240 is an abundant number, since it is smaller than the sum of its proper divisors (586580).

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

430240 is a wasteful number, since it uses less digits than its factorization.

430240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704 (or 2696 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 430240 is about 655.9268251871. The cubic root of 430240 is about 75.4924630285.

Adding to 430240 its product of nonzero digits (96), we get a square (430336 = 656²).

Adding to 430240 its reverse (42034), we get a palindrome (472274).

The spelling of 430240 in words is "four hundred thirty thousand, two hundred forty".