1232641880 has 64 divisors (see below), whose sum is σ = 2837134080. Its totient is φ = 481852800.

The previous prime is 1232641873. The next prime is 1232641957. The reversal of 1232641880 is 881462321.

It is a Cunningham number, because it is equal to 35109²-1.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1232641880.

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, 349325 + ... + 352835.

It is an arithmetic number, because the mean of its divisors is an integer number (44330220).

Almost surely, 2^1232641880 is an apocalyptic number.

1232641880 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 1232641880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1418567040).

1232641880 is an abundant number, since it is smaller than the sum of its proper divisors (1604492200).

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

1232641880 is a wasteful number, since it uses less digits than its factorization.

1232641880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720 (or 3716 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 1232641880 is about 35108.9999857586. Note that the first 4 decimals coincide. The cubic root of 1232641880 is about 1072.2078266219.

The spelling of 1232641880 in words is "one billion, two hundred thirty-two million, six hundred forty-one thousand, eight hundred eighty".