620228 has 24 divisors (see below), whose sum is σ = 1314432. Its totient is φ = 249984.

The previous prime is 620227. The next prime is 620233. The reversal of 620228 is 822026.

620228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176 + ... + 1127.

It is an arithmetic number, because the mean of its divisors is an integer number (54768).

2⁶²⁰²²⁸ is an apocalyptic number.

620228 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

620228 is an abundant number, since it is smaller than the sum of its proper divisors (694204).

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

620228 is a wasteful number, since it uses less digits than its factorization.

620228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 620228 is about 787.5455542380. The cubic root of 620228 is about 85.2806410267.

It can be divided in two parts, 620 and 228, that added together give a palindrome (848).

The spelling of 620228 in words is "six hundred twenty thousand, two hundred twenty-eight".