72441522 has 24 divisors (see below), whose sum is σ = 166190076. Its totient is φ = 22726656.

The previous prime is 72441521. The next prime is 72441553. The reversal of 72441522 is 22514427.

It can be written as a sum of positive squares in 2 ways, for example, as 71419401 + 1022121 = 8451^2 + 1011^2 .

It is not an unprimeable number, because it can be changed into a prime (72441521) 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 11 ways as a sum of consecutive naturals, for example, 118063 + ... + 118674.

Almost surely, 2^72441522 is an apocalyptic number.

72441522 is an abundant number, since it is smaller than the sum of its proper divisors (93748554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72441522 is a wasteful number, since it uses less digits than its factorization.

72441522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236762 (or 236759 counting only the distinct ones).

The product of its digits is 4480, while the sum is 27.

The square root of 72441522 is about 8511.2585438347. The cubic root of 72441522 is about 416.8654052099.

Adding to 72441522 its reverse (22514427), we get a palindrome (94955949).

The spelling of 72441522 in words is "seventy-two million, four hundred forty-one thousand, five hundred twenty-two".