620338 has 4 divisors (see below), whose sum is σ = 930510. Its totient is φ = 310168.

The previous prime is 620329. The next prime is 620351. The reversal of 620338 is 833026.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833026 = 2 ⋅416513.

It can be written as a sum of positive squares in only one way, i.e., 528529 + 91809 = 727^2 + 303^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620338.

It is an unprimeable number.

620338 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 155083 + ... + 155086.

2⁶²⁰³³⁸ is an apocalyptic number.

620338 is a deficient number, since it is larger than the sum of its proper divisors (310172).

620338 is a wasteful number, since it uses less digits than its factorization.

620338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310171.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 620338 is about 787.6153883718. The cubic root of 620338 is about 85.2856823534.

It can be divided in two parts, 6203 and 38, that added together give a square (6241 = 79²).

The spelling of 620338 in words is "six hundred twenty thousand, three hundred thirty-eight".