2101440342 has 32 divisors (see below), whose sum is σ = 4285235808. Its totient is φ = 686866176.

The previous prime is 2101440323. The next prime is 2101440391. The reversal of 2101440342 is 2430441012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61908 + ... + 89640.

It is an arithmetic number, because the mean of its divisors is an integer number (133913619).

Almost surely, 2^2101440342 is an apocalyptic number.

2101440342 is an abundant number, since it is smaller than the sum of its proper divisors (2183795466).

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

2101440342 is a wasteful number, since it uses less digits than its factorization.

2101440342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27984.

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

The square root of 2101440342 is about 45841.4696753933. The cubic root of 2101440342 is about 1280.8718714038.

Adding to 2101440342 its reverse (2430441012), we get a palindrome (4531881354).

The spelling of 2101440342 in words is "two billion, one hundred one million, four hundred forty thousand, three hundred forty-two".