420235 has 4 divisors (see below), whose sum is σ = 504288. Its totient is φ = 336184.

The previous prime is 420221. The next prime is 420241. The reversal of 420235 is 532024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42019 + ... + 42028.

It is an arithmetic number, because the mean of its divisors is an integer number (126072).

2⁴²⁰²³⁵ is an apocalyptic number.

420235 is a deficient number, since it is larger than the sum of its proper divisors (84053).

420235 is an equidigital number, since it uses as much as digits as its factorization.

420235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84052.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 420235 is about 648.2553509228. The cubic root of 420235 is about 74.9026886093.

Adding to 420235 its reverse (532024), we get a palindrome (952259).

The spelling of 420235 in words is "four hundred twenty thousand, two hundred thirty-five".