2642239443 has 4 divisors (see below), whose sum is σ = 3522985928. Its totient is φ = 1761492960.

The previous prime is 2642239417. The next prime is 2642239459. The reversal of 2642239443 is 3449322462.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2642239443 - 2²¹ = 2640142291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642239493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440373238 + ... + 440373243.

It is an arithmetic number, because the mean of its divisors is an integer number (880746482).

Almost surely, 2^2642239443 is an apocalyptic number.

2642239443 is a deficient number, since it is larger than the sum of its proper divisors (880746485).

2642239443 is an equidigital number, since it uses as much as digits as its factorization.

2642239443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880746484.

The product of its digits is 248832, while the sum is 39.

The square root of 2642239443 is about 51402.7182452446. The cubic root of 2642239443 is about 1382.4753309813.

The spelling of 2642239443 in words is "two billion, six hundred forty-two million, two hundred thirty-nine thousand, four hundred forty-three".