280634468 has 12 divisors (see below), whose sum is σ = 492285360. Its totient is φ = 139981512.

The previous prime is 280634437. The next prime is 280634507. The reversal of 280634468 is 864436082.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82046 + ... + 85397.

It is an arithmetic number, because the mean of its divisors is an integer number (41023780).

Almost surely, 2^280634468 is an apocalyptic number.

It is an amenable number.

280634468 is a deficient number, since it is larger than the sum of its proper divisors (211650892).

280634468 is a wasteful number, since it uses less digits than its factorization.

280634468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167866 (or 167864 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 280634468 is about 16752.1481607584. The cubic root of 280634468 is about 654.7070290117.

The spelling of 280634468 in words is "two hundred eighty million, six hundred thirty-four thousand, four hundred sixty-eight".