1628087568 has 40 divisors (see below), whose sum is σ = 4388760768. Its totient is φ = 519100032.

The previous prime is 1628087563. The next prime is 1628087597. The reversal of 1628087568 is 8657808261.

It is a self number, because there is not a number n which added to its sum of digits gives 1628087568.

It is not an unprimeable number, because it can be changed into a prime (1628087563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736255 + ... + 738462.

Almost surely, 2^1628087568 is an apocalyptic number.

It is an amenable number.

1628087568 is an abundant number, since it is smaller than the sum of its proper divisors (2760673200).

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

1628087568 is a wasteful number, since it uses less digits than its factorization.

1628087568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474751 (or 1474745 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 1628087568 is about 40349.5671352246. The cubic root of 1628087568 is about 1176.4114784804.

The spelling of 1628087568 in words is "one billion, six hundred twenty-eight million, eighty-seven thousand, five hundred sixty-eight".