4405620623 has 4 divisors (see below), whose sum is σ = 4499357280. Its totient is φ = 4311883968.

The previous prime is 4405620617. The next prime is 4405620631. The reversal of 4405620623 is 3260265044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4405620623 - 2²⁰ = 4404572047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4405620623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4405620613) 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 3 ways as a sum of consecutive naturals, for example, 46868258 + ... + 46868351.

It is an arithmetic number, because the mean of its divisors is an integer number (1124839320).

Almost surely, 2^4405620623 is an apocalyptic number.

4405620623 is a deficient number, since it is larger than the sum of its proper divisors (93736657).

4405620623 is an equidigital number, since it uses as much as digits as its factorization.

4405620623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93736656.

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 4405620623 is about 66374.8493256294. The cubic root of 4405620623 is about 1639.3399861250.

Adding to 4405620623 its reverse (3260265044), we get a palindrome (7665885667).

The spelling of 4405620623 in words is "four billion, four hundred five million, six hundred twenty thousand, six hundred twenty-three".