620028 has 24 divisors (see below), whose sum is σ = 1607760. Its totient is φ = 206640.

The previous prime is 620003. The next prime is 620029. The reversal of 620028 is 820026.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620029) by changing a digit.

620028 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2763 + ... + 2978.

It is an arithmetic number, because the mean of its divisors is an integer number (66990).

2⁶²⁰⁰²⁸ is an apocalyptic number.

It is an amenable number.

620028 is an abundant number, since it is smaller than the sum of its proper divisors (987732).

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

620028 is a wasteful number, since it uses less digits than its factorization.

620028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754 (or 5746 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 620028 is about 787.4185672182. The cubic root of 620028 is about 85.2714734508.

The spelling of 620028 in words is "six hundred twenty thousand, twenty-eight".