420430 has 8 divisors (see below), whose sum is σ = 756792. Its totient is φ = 168168.

The previous prime is 420421. The next prime is 420439. The reversal of 420430 is 34024.

It is an interprime number because it is at equal distance from previous prime (420421) and next prime (420439).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×420430² = 353522769800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21012 + ... + 21031.

It is an arithmetic number, because the mean of its divisors is an integer number (94599).

2⁴²⁰⁴³⁰ is an apocalyptic number.

420430 is a deficient number, since it is larger than the sum of its proper divisors (336362).

420430 is a wasteful number, since it uses less digits than its factorization.

420430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42050.

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

The square root of 420430 is about 648.4057371739. The cubic root of 420430 is about 74.9142724181.

Adding to 420430 its reverse (34024), we get a palindrome (454454).

The spelling of 420430 in words is "four hundred twenty thousand, four hundred thirty".