1232113440 has 96 divisors (see below), whose sum is σ = 3886444800. Its totient is φ = 328116224.

The previous prime is 1232113433. The next prime is 1232113447. The reversal of 1232113440 is 443112321.

It is an interprime number because it is at equal distance from previous prime (1232113433) and next prime (1232113447).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (1232113447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502297 + ... + 504743.

It is an arithmetic number, because the mean of its divisors is an integer number (40483800).

Almost surely, 2^1232113440 is an apocalyptic number.

1232113440 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 1232113440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1943222400).

1232113440 is an abundant number, since it is smaller than the sum of its proper divisors (2654331360).

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

1232113440 is a wasteful number, since it uses less digits than its factorization.

1232113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514 (or 3506 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1232113440 is about 35101.4734733458. The cubic root of 1232113440 is about 1072.0545843595.

Adding to 1232113440 its reverse (443112321), we get a palindrome (1675225761).

The spelling of 1232113440 in words is "one billion, two hundred thirty-two million, one hundred thirteen thousand, four hundred forty".