2421432842 has 16 divisors (see below), whose sum is σ = 3867062472. Its totient is φ = 1133199360.

The previous prime is 2421432841. The next prime is 2421432887. The reversal of 2421432842 is 2482341242.

It can be written as a sum of positive squares in 4 ways, for example, as 914518081 + 1506914761 = 30241^2 + 38819^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2421432799 and 2421432808.

It is not an unprimeable number, because it can be changed into a prime (2421432841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190583 + ... + 202890.

Almost surely, 2^2421432842 is an apocalyptic number.

2421432842 is a deficient number, since it is larger than the sum of its proper divisors (1445629630).

2421432842 is a wasteful number, since it uses less digits than its factorization.

2421432842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393673.

The product of its digits is 24576, while the sum is 32.

The square root of 2421432842 is about 49208.0566777433. The cubic root of 2421432842 is about 1342.8396087333.

The spelling of 2421432842 in words is "two billion, four hundred twenty-one million, four hundred thirty-two thousand, eight hundred forty-two".