2140404342 has 16 divisors (see below), whose sum is σ = 4396506672. Its totient is φ = 694185120.

The previous prime is 2140404337. The next prime is 2140404407. The reversal of 2140404342 is 2434040412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4820509 + ... + 4820952.

It is an arithmetic number, because the mean of its divisors is an integer number (274781667).

Almost surely, 2^2140404342 is an apocalyptic number.

2140404342 is an abundant number, since it is smaller than the sum of its proper divisors (2256102330).

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

2140404342 is a wasteful number, since it uses less digits than its factorization.

2140404342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9641503.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 2140404342 is about 46264.5041257334. The cubic root of 2140404342 is about 1288.7398992461.

Adding to 2140404342 its reverse (2434040412), we get a palindrome (4574444754).

The spelling of 2140404342 in words is "two billion, one hundred forty million, four hundred four thousand, three hundred forty-two".