12229830438 has 32 divisors (see below), whose sum is σ = 27960940800. Its totient is φ = 3493356960.

The previous prime is 12229830419. The next prime is 12229830463. The reversal of 12229830438 is 83403892221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 12229830438.

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, 142288 + ... + 211436.

It is an arithmetic number, because the mean of its divisors is an integer number (873779400).

Almost surely, 2^12229830438 is an apocalyptic number.

12229830438 is an abundant number, since it is smaller than the sum of its proper divisors (15731110362).

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

12229830438 is a wasteful number, since it uses less digits than its factorization.

12229830438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73372.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 12229830438 in words is "twelve billion, two hundred twenty-nine million, eight hundred thirty thousand, four hundred thirty-eight".