4423015423 has 6 divisors (see below), whose sum is σ = 4479717984. Its totient is φ = 4367021724.

The previous prime is 4423015397. The next prime is 4423015481. The reversal of 4423015423 is 3245103244.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-4423015423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4423015391 and 4423015400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4423015123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348111 + ... + 360592.

It is an arithmetic number, because the mean of its divisors is an integer number (746619664).

Almost surely, 2^4423015423 is an apocalyptic number.

4423015423 is a deficient number, since it is larger than the sum of its proper divisors (56702561).

4423015423 is an frugal number, since it uses more digits than its factorization.

4423015423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708861 (or 708782 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 4423015423 is about 66505.7548111440. The cubic root of 4423015423 is about 1641.4946990586.

Adding to 4423015423 its reverse (3245103244), we get a palindrome (7668118667).

The spelling of 4423015423 in words is "four billion, four hundred twenty-three million, fifteen thousand, four hundred twenty-three".