628131260 has 48 divisors (see below), whose sum is σ = 1402897440. Its totient is φ = 235560960.

The previous prime is 628131253. The next prime is 628131293. The reversal of 628131260 is 62131826.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28340 + ... + 45380.

It is an arithmetic number, because the mean of its divisors is an integer number (29227030).

Almost surely, 2^628131260 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 628131260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701448720).

628131260 is an abundant number, since it is smaller than the sum of its proper divisors (774766180).

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

628131260 is a wasteful number, since it uses less digits than its factorization.

628131260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17166 (or 17164 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 628131260 is about 25062.5469575620. The cubic root of 628131260 is about 856.4134299373.

The spelling of 628131260 in words is "six hundred twenty-eight million, one hundred thirty-one thousand, two hundred sixty".