4581442939 has 8 divisors (see below), whose sum is σ = 4740204960. Its totient is φ = 4422733056.

The previous prime is 4581442913. The next prime is 4581442949. The reversal of 4581442939 is 9392441854.

It is a happy number.

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 4581442939 - 2²¹ = 4579345787 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 4581442892 and 4581442901.

It is not an unprimeable number, because it can be changed into a prime (4581442909) 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, 270859 + ... + 287275.

It is an arithmetic number, because the mean of its divisors is an integer number (592525620).

Almost surely, 2^4581442939 is an apocalyptic number.

4581442939 is a deficient number, since it is larger than the sum of its proper divisors (158762021).

4581442939 is a wasteful number, since it uses less digits than its factorization.

4581442939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26069.

The product of its digits is 1244160, while the sum is 49.

The square root of 4581442939 is about 67686.3571113116. The cubic root of 4581442939 is about 1660.8640852653.

The spelling of 4581442939 in words is "four billion, five hundred eighty-one million, four hundred forty-two thousand, nine hundred thirty-nine".