72441565 has 32 divisors (see below), whose sum is σ = 103680000. Its totient is φ = 47539968.

The previous prime is 72441553. The next prime is 72441569. The reversal of 72441565 is 56514427.

It is not a de Polignac number, because 72441565 - 2¹¹ = 72439517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72441565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72441569) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150996 + ... + 151474.

It is an arithmetic number, because the mean of its divisors is an integer number (3240000).

Almost surely, 2^72441565 is an apocalyptic number.

It is an amenable number.

72441565 is a deficient number, since it is larger than the sum of its proper divisors (31238435).

72441565 is a wasteful number, since it uses less digits than its factorization.

72441565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669.

The product of its digits is 33600, while the sum is 34.

The square root of 72441565 is about 8511.2610699003. The cubic root of 72441565 is about 416.8654876912.

The spelling of 72441565 in words is "seventy-two million, four hundred forty-one thousand, five hundred sixty-five".