28300996441 has 9 divisors (see below), whose sum is σ = 29315598013. Its totient is φ = 27320389600.

The previous prime is 28300996433. The next prime is 28300996453. The reversal of 28300996441 is 14469900382.

The square root of 28300996441 is 168229.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 11145236041 + 17155760400 = 105571^2 + 130980^2 .

It is not a de Polignac number, because 28300996441 - 2³ = 28300996433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28300996391 and 28300996400.

It is not an unprimeable number, because it can be changed into a prime (28300997441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4875741 + ... + 4881541.

Almost surely, 2^28300996441 is an apocalyptic number.

28300996441 is the 168229-th square number.

28300996441 is the 84115-th centered octagonal number.

It is an amenable number.

28300996441 is a deficient number, since it is larger than the sum of its proper divisors (1014601572).

28300996441 is an frugal number, since it uses more digits than its factorization.

28300996441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11660 (or 5830 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 28300996441 in words is "twenty-eight billion, three hundred million, nine hundred ninety-six thousand, four hundred forty-one".