2140431132 has 96 divisors (see below), whose sum is σ = 5890752000. Its totient is φ = 604576896.

The previous prime is 2140431127. The next prime is 2140431133. The reversal of 2140431132 is 2311340412.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2140431099 and 2140431108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140431133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363403 + ... + 369245.

It is an arithmetic number, because the mean of its divisors is an integer number (61362000).

Almost surely, 2^2140431132 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 2140431132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2945376000).

2140431132 is an abundant number, since it is smaller than the sum of its proper divisors (3750320868).

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

2140431132 is a wasteful number, since it uses less digits than its factorization.

2140431132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960 (or 5944 counting only the distinct ones).

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

The square root of 2140431132 is about 46264.7936556514. The cubic root of 2140431132 is about 1288.7452759869.

Adding to 2140431132 its reverse (2311340412), we get a palindrome (4451771544).

The spelling of 2140431132 in words is "two billion, one hundred forty million, four hundred thirty-one thousand, one hundred thirty-two".