2312231440 has 40 divisors (see below), whose sum is σ = 5451668928. Its totient is φ = 911863680.

The previous prime is 2312231437. The next prime is 2312231459. The reversal of 2312231440 is 441322132.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197862 + ... + 209221.

Almost surely, 2^2312231440 is an apocalyptic number.

2312231440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2312231440 is an abundant number, since it is smaller than the sum of its proper divisors (3139437488).

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

2312231440 is a wasteful number, since it uses less digits than its factorization.

2312231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407167 (or 407161 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2312231440 is about 48085.6677191863. The cubic root of 2312231440 is about 1322.3419245671.

Adding to 2312231440 its reverse (441322132), we get a palindrome (2753553572).

The spelling of 2312231440 in words is "two billion, three hundred twelve million, two hundred thirty-one thousand, four hundred forty".