606420 has 48 divisors (see below), whose sum is σ = 1888320. Its totient is φ = 161568.

The previous prime is 606413. The next prime is 606433. The reversal of 606420 is 24606.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 606393 and 606402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (39340).

2⁶⁰⁶⁴²⁰ is an apocalyptic number.

606420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 606420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (944160).

606420 is an abundant number, since it is smaller than the sum of its proper divisors (1281900).

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

606420 is a wasteful number, since it uses less digits than its factorization.

606420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 606420 is about 778.7297348888. The cubic root of 606420 is about 84.6430242403.

It can be divided in two parts, 6064 and 20, that added together give a square (6084 = 78²).

The spelling of 606420 in words is "six hundred six thousand, four hundred twenty".