1280930232 has 64 divisors (see below), whose sum is σ = 3402352800. Its totient is φ = 401103360.

The previous prime is 1280930219. The next prime is 1280930249. The reversal of 1280930232 is 2320390821.

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 1280930232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882 + ... + 50622.

Almost surely, 2^1280930232 is an apocalyptic number.

1280930232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1280930232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1701176400).

1280930232 is an abundant number, since it is smaller than the sum of its proper divisors (2121422568).

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

1280930232 is a wasteful number, since it uses less digits than its factorization.

1280930232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49816 (or 49812 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1280930232 is about 35790.0856662847. The cubic root of 1280930232 is about 1086.0300077515.

The spelling of 1280930232 in words is "one billion, two hundred eighty million, nine hundred thirty thousand, two hundred thirty-two".