1240232112 has 120 divisors (see below), whose sum is σ = 3975269376. Its totient is φ = 353593728.

The previous prime is 1240232107. The next prime is 1240232153. The reversal of 1240232112 is 2112320421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610843 + ... + 612869.

Almost surely, 2^1240232112 is an apocalyptic number.

1240232112 is a gapful number since it is divisible by the number (12) 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 1240232112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987634688).

1240232112 is an abundant number, since it is smaller than the sum of its proper divisors (2735037264).

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

1240232112 is a wasteful number, since it uses less digits than its factorization.

1240232112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1240232112 is about 35216.9293380329. The cubic root of 1240232112 is about 1074.4041008192.

Adding to 1240232112 its reverse (2112320421), we get a palindrome (3352552533).

The spelling of 1240232112 in words is "one billion, two hundred forty million, two hundred thirty-two thousand, one hundred twelve".