28306030608 has 100 divisors (see below), whose sum is σ = 86745100860. Its totient is φ = 8880316416.

The previous prime is 28306030573. The next prime is 28306030663. The reversal of 28306030608 is 80603060382.

It can be written as a sum of positive squares in 2 ways, for example, as 19430129664 + 8875900944 = 139392^2 + 94212^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 620353 + ... + 664416.

Almost surely, 2^28306030608 is an apocalyptic number.

It is an amenable number.

28306030608 is an abundant number, since it is smaller than the sum of its proper divisors (58439070252).

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

28306030608 is a wasteful number, since it uses less digits than its factorization.

28306030608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284806 (or 1284791 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 28306030608 in words is "twenty-eight billion, three hundred six million, thirty thousand, six hundred eight".