28296028044 has 36 divisors (see below), whose sum is σ = 71604667680. Its totient is φ = 9421644960.

The previous prime is 28296028039. The next prime is 28296028091. The reversal of 28296028044 is 44082069282.

28296028044 is a `hidden beast` number, since 282 + 96 + 0 + 280 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398599 + ... + 464190.

Almost surely, 2^28296028044 is an apocalyptic number.

It is an amenable number.

28296028044 is an abundant number, since it is smaller than the sum of its proper divisors (43308639636).

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

28296028044 is a wasteful number, since it uses less digits than its factorization.

28296028044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863710 (or 863705 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 28296028044 in words is "twenty-eight billion, two hundred ninety-six million, twenty-eight thousand, forty-four".