1232863280 has 80 divisors (see below), whose sum is σ = 3149798400. Its totient is φ = 445044480.

The previous prime is 1232863271. The next prime is 1232863297. The reversal of 1232863280 is 823682321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1232863280.

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, 117281 + ... + 127359.

It is an arithmetic number, because the mean of its divisors is an integer number (39372480).

Almost surely, 2^1232863280 is an apocalyptic number.

1232863280 is a gapful number since it is divisible by the number (10) 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 1232863280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574899200).

1232863280 is an abundant number, since it is smaller than the sum of its proper divisors (1916935120).

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

1232863280 is a wasteful number, since it uses less digits than its factorization.

1232863280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242 (or 10236 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1232863280 is about 35112.1528818727. The cubic root of 1232863280 is about 1072.2720173668.

The spelling of 1232863280 in words is "one billion, two hundred thirty-two million, eight hundred sixty-three thousand, two hundred eighty".