72442243441 has 8 divisors (see below), whose sum is σ = 73052181440. Its totient is φ = 71833573872.

The previous prime is 72442243337. The next prime is 72442243451. The reversal of 72442243441 is 14434224427.

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 72442243441 - 2³¹ = 70294759793 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 72442243441.

It is not an unprimeable number, because it can be changed into a prime (72442243451) 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, 202230 + ... + 431023.

It is an arithmetic number, because the mean of its divisors is an integer number (9131522680).

Almost surely, 2^72442243441 is an apocalyptic number.

It is an amenable number.

72442243441 is a deficient number, since it is larger than the sum of its proper divisors (609937999).

72442243441 is a wasteful number, since it uses less digits than its factorization.

72442243441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634215.

The product of its digits is 172032, while the sum is 37.

Adding to 72442243441 its reverse (14434224427), we get a palindrome (86876467868).

The spelling of 72442243441 in words is "seventy-two billion, four hundred forty-two million, two hundred forty-three thousand, four hundred forty-one".