1280233860 has 24 divisors (see below), whose sum is σ = 3584654976. Its totient is φ = 341395680.

The previous prime is 1280233831. The next prime is 1280233957. The reversal of 1280233860 is 683320821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10668556 + ... + 10668675.

It is an arithmetic number, because the mean of its divisors is an integer number (149360624).

Almost surely, 2^1280233860 is an apocalyptic number.

1280233860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1280233860 is an abundant number, since it is smaller than the sum of its proper divisors (2304421116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1280233860 is a wasteful number, since it uses less digits than its factorization.

1280233860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21337243 (or 21337241 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1280233860 is about 35780.3557835861. The cubic root of 1280233860 is about 1085.8331669555.

The spelling of 1280233860 in words is "one billion, two hundred eighty million, two hundred thirty-three thousand, eight hundred sixty".