420238 has 16 divisors (see below), whose sum is σ = 776160. Its totient is φ = 166176.

The previous prime is 420221. The next prime is 420241. The reversal of 420238 is 832024.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

420238 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 7 ways as a sum of consecutive naturals, for example, 973 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (48510).

2⁴²⁰²³⁸ is an apocalyptic number.

420238 is a deficient number, since it is larger than the sum of its proper divisors (355922).

420238 is a wasteful number, since it uses less digits than its factorization.

420238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420238 is about 648.2576648216. The cubic root of 420238 is about 74.9028668489.

The spelling of 420238 in words is "four hundred twenty thousand, two hundred thirty-eight".