280240420846 has 32 divisors (see below), whose sum is σ = 468597173760. Its totient is φ = 124914566016.

The previous prime is 280240420841. The next prime is 280240420861. The reversal of 280240420846 is 648024042082.

280240420846 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 280240420799 and 280240420808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280240420841) 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 15 ways as a sum of consecutive naturals, for example, 3883531 + ... + 3955033.

It is an arithmetic number, because the mean of its divisors is an integer number (14643661680).

Almost surely, 2^280240420846 is an apocalyptic number.

280240420846 is a deficient number, since it is larger than the sum of its proper divisors (188356752914).

280240420846 is a wasteful number, since it uses less digits than its factorization.

280240420846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77608.

The product of its (nonzero) digits is 196608, while the sum is 40.

The spelling of 280240420846 in words is "two hundred eighty billion, two hundred forty million, four hundred twenty thousand, eight hundred forty-six".