628100244 has 120 divisors (see below), whose sum is σ = 1697794560. Its totient is φ = 202378176.

The previous prime is 628100243. The next prime is 628100257. The reversal of 628100244 is 442001826.

628100244 is a `hidden beast` number, since 628 + 10 + 0 + 24 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628100243) 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 39 ways as a sum of consecutive naturals, for example, 1356357 + ... + 1356819.

It is an arithmetic number, because the mean of its divisors is an integer number (14148288).

Almost surely, 2^628100244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628100244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848897280).

628100244 is an abundant number, since it is smaller than the sum of its proper divisors (1069694316).

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

628100244 is a wasteful number, since it uses less digits than its factorization.

628100244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 628100244 is about 25061.9281780154. The cubic root of 628100244 is about 856.3993336500.

The spelling of 628100244 in words is "six hundred twenty-eight million, one hundred thousand, two hundred forty-four".