628222260 has 96 divisors (see below), whose sum is σ = 1848857472. Its totient is φ = 159183360.

The previous prime is 628222247. The next prime is 628222277. The reversal of 628222260 is 62222826.

628222260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92170 + ... + 98750.

It is an arithmetic number, because the mean of its divisors is an integer number (19258932).

Almost surely, 2^628222260 is an apocalyptic number.

628222260 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 628222260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (924428736).

628222260 is an abundant number, since it is smaller than the sum of its proper divisors (1220635212).

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

628222260 is a wasteful number, since it uses less digits than its factorization.

628222260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673 (or 6671 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 628222260 is about 25064.3623497587. The cubic root of 628222260 is about 856.4547853375.

The spelling of 628222260 in words is "six hundred twenty-eight million, two hundred twenty-two thousand, two hundred sixty".