1229885560 has 16 divisors (see below), whose sum is σ = 2767242600. Its totient is φ = 491954208.

The previous prime is 1229885557. The next prime is 1229885581. The reversal of 1229885560 is 655889221.

It is a self number, because there is not a number n which added to its sum of digits gives 1229885560.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 15373530 + ... + 15373609.

Almost surely, 2^1229885560 is an apocalyptic number.

1229885560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1229885560 is an abundant number, since it is smaller than the sum of its proper divisors (1537357040).

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

1229885560 is a wasteful number, since it uses less digits than its factorization.

1229885560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30747150 (or 30747146 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 46.

The square root of 1229885560 is about 35069.7242646702. The cubic root of 1229885560 is about 1071.4080394626.

The spelling of 1229885560 in words is "one billion, two hundred twenty-nine million, eight hundred eighty-five thousand, five hundred sixty".