28300431632 has 40 divisors (see below), whose sum is σ = 59945082912. Its totient is φ = 12836249600.

The previous prime is 28300431629. The next prime is 28300431689. The reversal of 28300431632 is 23613400382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89969 + ... + 254352.

Almost surely, 2^28300431632 is an apocalyptic number.

28300431632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28300431632 is an abundant number, since it is smaller than the sum of its proper divisors (31644651280).

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

28300431632 is a wasteful number, since it uses less digits than its factorization.

28300431632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344807 (or 344801 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 28300431632 in words is "twenty-eight billion, three hundred million, four hundred thirty-one thousand, six hundred thirty-two".