420582 has 16 divisors (see below), whose sum is σ = 847872. Its totient is φ = 139080.

The previous prime is 420571. The next prime is 420593. The reversal of 420582 is 285024.

It is an interprime number because it is at equal distance from previous prime (420571) and next prime (420593).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 963 + ... + 1329.

It is an arithmetic number, because the mean of its divisors is an integer number (52992).

2⁴²⁰⁵⁸² is an apocalyptic number.

420582 is an abundant number, since it is smaller than the sum of its proper divisors (427290).

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

420582 is a wasteful number, since it uses less digits than its factorization.

420582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 420582 is about 648.5229371426. The cubic root of 420582 is about 74.9232993647.

It can be divided in two parts, 4 and 20582, that multiplied together give a palindrome (82328).

The spelling of 420582 in words is "four hundred twenty thousand, five hundred eighty-two".