620422 has 8 divisors (see below), whose sum is σ = 1015272. Its totient is φ = 282000.

The previous prime is 620413. The next prime is 620429. The reversal of 620422 is 224026.

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

It is a junction number, because it is equal to n+sod(n) for n = 620396 and 620405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620429) 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 in 3 ways as a sum of consecutive naturals, for example, 14079 + ... + 14122.

It is an arithmetic number, because the mean of its divisors is an integer number (126909).

2⁶²⁰⁴²² is an apocalyptic number.

620422 is a deficient number, since it is larger than the sum of its proper divisors (394850).

620422 is a wasteful number, since it uses less digits than its factorization.

620422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28214.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 620422 is about 787.6687120865. The cubic root of 620422 is about 85.2895316925.

Adding to 620422 its reverse (224026), we get a palindrome (844448).

It can be divided in two parts, 6204 and 22, that added together give a palindrome (6226).

The spelling of 620422 in words is "six hundred twenty thousand, four hundred twenty-two".