72201441 has 8 divisors (see below), whose sum is σ = 103673920. Its totient is φ = 44431632.

The previous prime is 72201421. The next prime is 72201461. The reversal of 72201441 is 14410227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72201421) and next prime (72201461).

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

It is not a de Polignac number, because 72201441 - 2⁹ = 72200929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72201401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925621 + ... + 925698.

It is an arithmetic number, because the mean of its divisors is an integer number (12959240).

Almost surely, 2^72201441 is an apocalyptic number.

It is an amenable number.

72201441 is a deficient number, since it is larger than the sum of its proper divisors (31472479).

72201441 is a wasteful number, since it uses less digits than its factorization.

72201441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851335.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 72201441 is about 8497.1431081276. The cubic root of 72201441 is about 416.4043794254.

Adding to 72201441 its reverse (14410227), we get a palindrome (86611668).

The spelling of 72201441 in words is "seventy-two million, two hundred one thousand, four hundred forty-one".