2140122432 has 112 divisors (see below), whose sum is σ = 6603593600. Its totient is φ = 611444736.

The previous prime is 2140122379. The next prime is 2140122433. The reversal of 2140122432 is 2342210412.

It is a tau number, because it is divible by the number of its divisors (112).

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 = 2140122399 and 2140122408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140122433) 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, 49608 + ... + 82104.

Almost surely, 2^2140122432 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 2140122432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3301796800).

2140122432 is an abundant number, since it is smaller than the sum of its proper divisors (4463471168).

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

2140122432 is an equidigital number, since it uses as much as digits as its factorization.

2140122432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32533 (or 32509 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2140122432 is about 46261.4573051909. The cubic root of 2140122432 is about 1288.6833173176.

Adding to 2140122432 its reverse (2342210412), we get a palindrome (4482332844).

The spelling of 2140122432 in words is "two billion, one hundred forty million, one hundred twenty-two thousand, four hundred thirty-two".