2131040442 has 64 divisors (see below), whose sum is σ = 4426629120. Its totient is φ = 683557056.

The previous prime is 2131040441. The next prime is 2131040449. The reversal of 2131040442 is 2440401312.

2131040442 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2131040441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5622609 + ... + 5622987.

It is an arithmetic number, because the mean of its divisors is an integer number (69166080).

Almost surely, 2^2131040442 is an apocalyptic number.

2131040442 is an abundant number, since it is smaller than the sum of its proper divisors (2295588678).

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

2131040442 is a wasteful number, since it uses less digits than its factorization.

2131040442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715.

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

The square root of 2131040442 is about 46163.1935853663. The cubic root of 2131040442 is about 1286.8578136766.

Adding to 2131040442 its reverse (2440401312), we get a palindrome (4571441754).

The spelling of 2131040442 in words is "two billion, one hundred thirty-one million, forty thousand, four hundred forty-two".