2642044403 has 4 divisors (see below), whose sum is σ = 2679256368. Its totient is φ = 2604832440.

The previous prime is 2642044393. The next prime is 2642044429. The reversal of 2642044403 is 3044402462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3044402462 = 2 ⋅1522201231.

It is a cyclic number.

It is not a de Polignac number, because 2642044403 - 2¹⁰ = 2642043379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2642044003) 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, 18605876 + ... + 18606017.

It is an arithmetic number, because the mean of its divisors is an integer number (669814092).

Almost surely, 2^2642044403 is an apocalyptic number.

2642044403 is a deficient number, since it is larger than the sum of its proper divisors (37211965).

2642044403 is an equidigital number, since it uses as much as digits as its factorization.

2642044403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37211964.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 2642044403 is about 51400.8210342987. The cubic root of 2642044403 is about 1382.4413137989.

Adding to 2642044403 its reverse (3044402462), we get a palindrome (5686446865).

The spelling of 2642044403 in words is "two billion, six hundred forty-two million, forty-four thousand, four hundred three".