12238685280 has 336 divisors, whose sum is σ = 43619146704. Its totient is φ = 3243525120.

The previous prime is 12238685231. The next prime is 12238685281. The reversal of 12238685280 is 8258683221.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238685281) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 36974715 + ... + 36975045.

It is an arithmetic number, because the mean of its divisors is an integer number (129818889).

Almost surely, 2^12238685280 is an apocalyptic number.

12238685280 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 12238685280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21809573352).

12238685280 is an abundant number, since it is smaller than the sum of its proper divisors (31380461424).

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

12238685280 is an equidigital number, since it uses as much as digits as its factorization.

12238685280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 12238685280 in words is "twelve billion, two hundred thirty-eight million, six hundred eighty-five thousand, two hundred eighty".