280775000306 has 16 divisors (see below), whose sum is σ = 425182908480. Its totient is φ = 139048313040.

The previous prime is 280775000293. The next prime is 280775000329. The reversal of 280775000306 is 603000577082.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 280775000306.

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, 359555 + ... + 831161.

It is an arithmetic number, because the mean of its divisors is an integer number (26573931780).

Almost surely, 2^280775000306 is an apocalyptic number.

280775000306 is a deficient number, since it is larger than the sum of its proper divisors (144407908174).

280775000306 is a wasteful number, since it uses less digits than its factorization.

280775000306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474449.

The product of its (nonzero) digits is 70560, while the sum is 38.

Adding to 280775000306 its reverse (603000577082), we get a palindrome (883775577388).

The spelling of 280775000306 in words is "two hundred eighty billion, seven hundred seventy-five million, three hundred six", and thus it is an aban number.