628511260 has 96 divisors (see below), whose sum is σ = 1528611840. Its totient is φ = 215094528.

The previous prime is 628511251. The next prime is 628511269. The reversal of 628511260 is 62115826.

It is an interprime number because it is at equal distance from previous prime (628511251) and next prime (628511269).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628511269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230827 + ... + 233533.

It is an arithmetic number, because the mean of its divisors is an integer number (15923040).

Almost surely, 2^628511260 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 628511260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764305920).

628511260 is an abundant number, since it is smaller than the sum of its proper divisors (900100580).

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

628511260 is a wasteful number, since it uses less digits than its factorization.

628511260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795 (or 2793 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 628511260 is about 25070.1268445136. The cubic root of 628511260 is about 856.5860963420.

The spelling of 628511260 in words is "six hundred twenty-eight million, five hundred eleven thousand, two hundred sixty".