420283 has 6 divisors (see below), whose sum is σ = 433356. Its totient is φ = 407592.

The previous prime is 420271. The next prime is 420293. The reversal of 420283 is 382024.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-420283 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 420283.

It is not an unprimeable number, because it can be changed into a prime (420253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1216 + ... + 1522.

It is an arithmetic number, because the mean of its divisors is an integer number (72226).

2⁴²⁰²⁸³ is an apocalyptic number.

420283 is a deficient number, since it is larger than the sum of its proper divisors (13073).

420283 is an equidigital number, since it uses as much as digits as its factorization.

420283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 344 counting only the distinct ones).

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

The square root of 420283 is about 648.2923723136. The cubic root of 420283 is about 74.9055403408.

It can be divided in two parts, 420 and 283, that added together give a triangular number (703 = T₃₇).

The spelling of 420283 in words is "four hundred twenty thousand, two hundred eighty-three".