2042542723 has 8 divisors (see below), whose sum is σ = 2214230816. Its totient is φ = 1872936000.

The previous prime is 2042542717. The next prime is 2042542751. The reversal of 2042542723 is 3272452402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2042542723 - 2²¹ = 2040445571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042542753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518298 + ... + 522223.

It is an arithmetic number, because the mean of its divisors is an integer number (276778852).

Almost surely, 2^2042542723 is an apocalyptic number.

2042542723 is a deficient number, since it is larger than the sum of its proper divisors (171688093).

2042542723 is a wasteful number, since it uses less digits than its factorization.

2042542723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040685.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 2042542723 is about 45194.4988134618. The cubic root of 2042542723 is about 1268.7918580737.

The spelling of 2042542723 in words is "two billion, forty-two million, five hundred forty-two thousand, seven hundred twenty-three".