628002284 has 48 divisors (see below), whose sum is σ = 1369804800. Its totient is φ = 245284416.

The previous prime is 628002191. The next prime is 628002299. The reversal of 628002284 is 482200826.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 628002284.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17837 + ... + 39675.

It is an arithmetic number, because the mean of its divisors is an integer number (28537600).

Almost surely, 2^628002284 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 628002284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684902400).

628002284 is an abundant number, since it is smaller than the sum of its proper divisors (741802516).

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

628002284 is a wasteful number, since it uses less digits than its factorization.

628002284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21942 (or 21940 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 628002284 is about 25059.9737430030. The cubic root of 628002284 is about 856.3548093132.

The spelling of 628002284 in words is "six hundred twenty-eight million, two thousand, two hundred eighty-four".