2421443573 has 4 divisors (see below), whose sum is σ = 2499554688. Its totient is φ = 2343332460.

The previous prime is 2421443567. The next prime is 2421443599. The reversal of 2421443573 is 3753441242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3753441242 = 2 ⋅1876720621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2421443573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2429443573) 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, 39055511 + ... + 39055572.

It is an arithmetic number, because the mean of its divisors is an integer number (624888672).

Almost surely, 2^2421443573 is an apocalyptic number.

It is an amenable number.

2421443573 is a deficient number, since it is larger than the sum of its proper divisors (78111115).

2421443573 is an equidigital number, since it uses as much as digits as its factorization.

2421443573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78111114.

The product of its digits is 80640, while the sum is 35.

The square root of 2421443573 is about 49208.1657146454. The cubic root of 2421443573 is about 1342.8415924060.

The spelling of 2421443573 in words is "two billion, four hundred twenty-one million, four hundred forty-three thousand, five hundred seventy-three".