420682 has 8 divisors (see below), whose sum is σ = 668196. Its totient is φ = 197952.

The previous prime is 420677. The next prime is 420683. The reversal of 420682 is 286024.

It can be written as a sum of positive squares in 2 ways, for example, as 410881 + 9801 = 641^2 + 99^2 .

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

It is not an unprimeable number, because it can be changed into a prime (420683) 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, 6153 + ... + 6220.

2⁴²⁰⁶⁸² is an apocalyptic number.

420682 is a deficient number, since it is larger than the sum of its proper divisors (247514).

420682 is a wasteful number, since it uses less digits than its factorization.

420682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12392.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 420682 is about 648.6000308356. The cubic root of 420682 is about 74.9292369593.

Subtracting from 420682 its product of nonzero digits (768), we obtain a palindrome (419914).

It can be divided in two parts, 4 and 20682, that multiplied together give a palindrome (82728).

The spelling of 420682 in words is "four hundred twenty thousand, six hundred eighty-two".