2040142942 has 4 divisors (see below), whose sum is σ = 3060214416. Its totient is φ = 1020071470.

The previous prime is 2040142931. The next prime is 2040142967. The reversal of 2040142942 is 2492410402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2492410402 = 2 ⋅1246205201.

It is a self number, because there is not a number n which added to its sum of digits gives 2040142942.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 510035734 + ... + 510035737.

It is an arithmetic number, because the mean of its divisors is an integer number (765053604).

Almost surely, 2^2040142942 is an apocalyptic number.

2040142942 is a deficient number, since it is larger than the sum of its proper divisors (1020071474).

2040142942 is a wasteful number, since it uses less digits than its factorization.

2040142942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020071473.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2040142942 is about 45167.9415293635. The cubic root of 2040142942 is about 1268.2947626655.

The spelling of 2040142942 in words is "two billion, forty million, one hundred forty-two thousand, nine hundred forty-two".