628236616 has 64 divisors (see below), whose sum is σ = 1390654080. Its totient is φ = 260444160.

The previous prime is 628236601. The next prime is 628236617. The reversal of 628236616 is 616632826.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (628236617) 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 15 ways as a sum of consecutive naturals, for example, 399111 + ... + 400681.

It is an arithmetic number, because the mean of its divisors is an integer number (21728970).

Almost surely, 2^628236616 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 628236616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695327040).

628236616 is an abundant number, since it is smaller than the sum of its proper divisors (762417464).

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

628236616 is a wasteful number, since it uses less digits than its factorization.

628236616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1810 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 628236616 is about 25064.6487308320. The cubic root of 628236616 is about 856.4613091280.

The spelling of 628236616 in words is "six hundred twenty-eight million, two hundred thirty-six thousand, six hundred sixteen".