28840870276 has 9 divisors (see below), whose sum is σ = 50472117381. Its totient is φ = 14420265312.

The previous prime is 28840870213. The next prime is 28840870283. The reversal of 28840870276 is 67207804882.

The square root of 28840870276 is 169826.

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

It can be written as a sum of positive squares in only one way, i.e., 5804916100 + 23035954176 = 76190^2 + 151776^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 297196 + ... + 382108.

Almost surely, 2^28840870276 is an apocalyptic number.

28840870276 is the 169826-th square number.

It is an amenable number.

28840870276 is a deficient number, since it is larger than the sum of its proper divisors (21631247105).

28840870276 is an frugal number, since it uses more digits than its factorization.

28840870276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169830 (or 84915 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 28840870276 in words is "twenty-eight billion, eight hundred forty million, eight hundred seventy thousand, two hundred seventy-six".