12238776 has 160 divisors (see below), whose sum is σ = 39988080. Its totient is φ = 3456000.

The previous prime is 12238771. The next prime is 12238799. The reversal of 12238776 is 67783221.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (28224) is a multiple of the sum of its prime factors (147).

It is a self number, because there is not a number n which added to its sum of digits gives 12238776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238771) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 121126 + ... + 121226.

It is a vampire number, since it can be written as 1683 ⋅ 7272 (with its own digits).

Almost surely, 2^12238776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12238776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19994040).

12238776 is an abundant number, since it is smaller than the sum of its proper divisors (27749304).

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

12238776 is a wasteful number, since it uses less digits than its factorization.

12238776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 134 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12238776 is about 3498.3962039769. The cubic root of 12238776 is about 230.4513882771.

It can be divided in two parts, 1223 and 8776, that added together give a palindrome (9999).

The spelling of 12238776 in words is "twelve million, two hundred thirty-eight thousand, seven hundred seventy-six".