4440145423 has 8 divisors (see below), whose sum is σ = 5295080448. Its totient is φ = 3640367544.

The previous prime is 4440145421. The next prime is 4440145429. The reversal of 4440145423 is 3245410444.

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

It is a cyclic number.

It is not a de Polignac number, because 4440145423 - 2¹ = 4440145421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440145421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13789111 + ... + 13789432.

It is an arithmetic number, because the mean of its divisors is an integer number (661885056).

Almost surely, 2^4440145423 is an apocalyptic number.

4440145423 is a deficient number, since it is larger than the sum of its proper divisors (854935025).

4440145423 is a wasteful number, since it uses less digits than its factorization.

4440145423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27578573.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 4440145423 is about 66634.4162051413. The cubic root of 4440145423 is about 1643.6110969422.

Adding to 4440145423 its reverse (3245410444), we get a palindrome (7685555867).

The spelling of 4440145423 in words is "four billion, four hundred forty million, one hundred forty-five thousand, four hundred twenty-three".