420562 has 8 divisors (see below), whose sum is σ = 633600. Its totient is φ = 209364.

The previous prime is 420557. The next prime is 420569. The reversal of 420562 is 265024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (420569) 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, 639 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (79200).

2⁴²⁰⁵⁶² is an apocalyptic number.

420562 is a deficient number, since it is larger than the sum of its proper divisors (213038).

420562 is a wasteful number, since it uses less digits than its factorization.

420562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 420562 is about 648.5075173042. The cubic root of 420562 is about 74.9221117328.

Adding to 420562 its reverse (265024), we get a palindrome (685586).

The spelling of 420562 in words is "four hundred twenty thousand, five hundred sixty-two".