420572 has 6 divisors (see below), whose sum is σ = 736008. Its totient is φ = 210284.

The previous prime is 420571. The next prime is 420593. The reversal of 420572 is 275024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420571) by changing a digit.

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 as a sum of consecutive naturals, namely, 52568 + ... + 52575.

It is an arithmetic number, because the mean of its divisors is an integer number (122668).

2⁴²⁰⁵⁷² is an apocalyptic number.

It is an amenable number.

420572 is a deficient number, since it is larger than the sum of its proper divisors (315436).

420572 is a wasteful number, since it uses less digits than its factorization.

420572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105147 (or 105145 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 420572 is about 648.5152272692. The cubic root of 420572 is about 74.9227055535.

Adding to 420572 its reverse (275024), we get a palindrome (695596).

The spelling of 420572 in words is "four hundred twenty thousand, five hundred seventy-two".