72241622 has 8 divisors (see below), whose sum is σ = 108419472. Its totient is φ = 36101800.

The previous prime is 72241613. The next prime is 72241627. The reversal of 72241622 is 22614227.

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

It is a junction number, because it is equal to n+sod(n) for n = 72241591 and 72241600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72241627) 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 3 ways as a sum of consecutive naturals, for example, 4154 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (13552434).

Almost surely, 2^72241622 is an apocalyptic number.

72241622 is a deficient number, since it is larger than the sum of its proper divisors (36177850).

72241622 is a wasteful number, since it uses less digits than its factorization.

72241622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19014.

The product of its digits is 2688, while the sum is 26.

The square root of 72241622 is about 8499.5071621830. The cubic root of 72241622 is about 416.4816098395.

Adding to 72241622 its reverse (22614227), we get a palindrome (94855849).

The spelling of 72241622 in words is "seventy-two million, two hundred forty-one thousand, six hundred twenty-two".