420234 has 8 divisors (see below), whose sum is σ = 840480. Its totient is φ = 140076.

The previous prime is 420221. The next prime is 420241. The reversal of 420234 is 432024.

It is a happy number.

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

420234 is an admirable number.

It is a super-2 number, since 2×420234² = 353193229512, which contains 22 as substring.

It is an unprimeable number.

420234 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, 35014 + ... + 35025.

It is an arithmetic number, because the mean of its divisors is an integer number (105060).

2⁴²⁰²³⁴ is an apocalyptic number.

420234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

420234 is a wasteful number, since it uses less digits than its factorization.

420234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70044.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 420234 is about 648.2545796213. The cubic root of 420234 is about 74.9026291959.

Adding to 420234 its reverse (432024), we get a palindrome (852258).

The spelling of 420234 in words is "four hundred twenty thousand, two hundred thirty-four".