28304077348 has 12 divisors (see below), whose sum is σ = 50344138012. Its totient is φ = 13920037920.

The previous prime is 28304077327. The next prime is 28304077421. The reversal of 28304077348 is 84377040382.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11603167524 + 16700909824 = 107718^2 + 129232^2 .

It is a super-2 number, since 2×28304077348² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28304077298 and 28304077307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57999915 + ... + 58000402.

Almost surely, 2^28304077348 is an apocalyptic number.

It is an amenable number.

28304077348 is a deficient number, since it is larger than the sum of its proper divisors (22040060664).

28304077348 is a wasteful number, since it uses less digits than its factorization.

28304077348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116000382 (or 116000380 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 28304077348 in words is "twenty-eight billion, three hundred four million, seventy-seven thousand, three hundred forty-eight".