4420438365 has 16 divisors (see below), whose sum is σ = 8083087488. Its totient is φ = 2020771776.

The previous prime is 4420438349. The next prime is 4420438367. The reversal of 4420438365 is 5638340244.

It is not a de Polignac number, because 4420438365 - 2⁴ = 4420438349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420438367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21049602 + ... + 21049811.

It is an arithmetic number, because the mean of its divisors is an integer number (505192968).

Almost surely, 2^4420438365 is an apocalyptic number.

It is an amenable number.

4420438365 is a deficient number, since it is larger than the sum of its proper divisors (3662649123).

4420438365 is a wasteful number, since it uses less digits than its factorization.

4420438365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42099428.

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 4420438365 is about 66486.3772888853. The cubic root of 4420438365 is about 1641.1758329696.

The spelling of 4420438365 in words is "four billion, four hundred twenty million, four hundred thirty-eight thousand, three hundred sixty-five".