1628068928 has 28 divisors (see below), whose sum is σ = 3231981852. Its totient is φ = 813711360.

The previous prime is 1628068921. The next prime is 1628068997. The reversal of 1628068928 is 8298608261.

It can be written as a sum of positive squares in 2 ways, for example, as 180418624 + 1447650304 = 13432^2 + 38048^2 .

It is not an unprimeable number, because it can be changed into a prime (1628068921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305648 + ... + 310928.

Almost surely, 2^1628068928 is an apocalyptic number.

It is an amenable number.

1628068928 is a deficient number, since it is larger than the sum of its proper divisors (1603912924).

1628068928 is an equidigital number, since it uses as much as digits as its factorization.

1628068928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110 (or 10100 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The square root of 1628068928 is about 40349.3361531513. The cubic root of 1628068928 is about 1176.4069888788.

The spelling of 1628068928 in words is "one billion, six hundred twenty-eight million, sixty-eight thousand, nine hundred twenty-eight".