2420644403 has 8 divisors (see below), whose sum is σ = 2551654800. Its totient is φ = 2289994848.

The previous prime is 2420644379. The next prime is 2420644411. The reversal of 2420644403 is 3044460242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2420644403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2420644483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76376 + ... + 103317.

It is an arithmetic number, because the mean of its divisors is an integer number (318956850).

Almost surely, 2^2420644403 is an apocalyptic number.

2420644403 is a deficient number, since it is larger than the sum of its proper divisors (131010397).

2420644403 is a wasteful number, since it uses less digits than its factorization.

2420644403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180421.

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

The square root of 2420644403 is about 49200.0447459146. The cubic root of 2420644403 is about 1342.6938462694.

The spelling of 2420644403 in words is "two billion, four hundred twenty million, six hundred forty-four thousand, four hundred three".