1232266140 has 144 divisors (see below), whose sum is σ = 4323691008. Its totient is φ = 278243712.

The previous prime is 1232266099. The next prime is 1232266159. The reversal of 1232266140 is 416622321.

1232266140 is a `hidden beast` number, since 1 + 23 + 2 + 26 + 614 + 0 = 666.

1232266140 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98689 + ... + 110471.

It is an arithmetic number, because the mean of its divisors is an integer number (30025632).

Almost surely, 2^1232266140 is an apocalyptic number.

1232266140 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 1232266140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2161845504).

1232266140 is an abundant number, since it is smaller than the sum of its proper divisors (3091424868).

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

1232266140 is a wasteful number, since it uses less digits than its factorization.

1232266140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11888 (or 11883 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1232266140 is about 35103.6485283225. The cubic root of 1232266140 is about 1072.0988703177.

Adding to 1232266140 its reverse (416622321), we get a palindrome (1648888461).

The spelling of 1232266140 in words is "one billion, two hundred thirty-two million, two hundred sixty-six thousand, one hundred forty".