4440420626 has 8 divisors (see below), whose sum is σ = 6661594380. Its totient is φ = 2219889168.

The previous prime is 4440420619. The next prime is 4440420683. The reversal of 4440420626 is 6260240444.

It can be written as a sum of positive squares in 2 ways, for example, as 4176390625 + 264030001 = 64625^2 + 16249^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4440420592 and 4440420601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142901 + ... + 171176.

Almost surely, 2^4440420626 is an apocalyptic number.

4440420626 is a deficient number, since it is larger than the sum of its proper divisors (2221173754).

4440420626 is a wasteful number, since it uses less digits than its factorization.

4440420626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321148.

The product of its (nonzero) digits is 36864, while the sum is 32.

The square root of 4440420626 is about 66636.4811946129. The cubic root of 4440420626 is about 1643.6450535898.

The spelling of 4440420626 in words is "four billion, four hundred forty million, four hundred twenty thousand, six hundred twenty-six".