420244 has 12 divisors (see below), whose sum is σ = 802368. Its totient is φ = 191000.

The previous prime is 420241. The next prime is 420253. The reversal of 420244 is 442024.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420241) 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, 4732 + ... + 4819.

It is an arithmetic number, because the mean of its divisors is an integer number (66864).

2⁴²⁰²⁴⁴ is an apocalyptic number.

420244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

420244 is a deficient number, since it is larger than the sum of its proper divisors (382124).

420244 is a wasteful number, since it uses less digits than its factorization.

420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9566 (or 9564 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 420244 is about 648.2622925946. The cubic root of 420244 is about 74.9032233255.

Adding to 420244 its reverse (442024), we get a palindrome (862268).

The spelling of 420244 in words is "four hundred twenty thousand, two hundred forty-four", and thus it is an iban number.