72241612 has 12 divisors (see below), whose sum is σ = 129839920. Its totient is φ = 35144496.

The previous prime is 72241601. The next prime is 72241613. The reversal of 72241612 is 21614227.

It is not an unprimeable number, because it can be changed into a prime (72241613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243912 + ... + 244207.

Almost surely, 2^72241612 is an apocalyptic number.

It is an amenable number.

72241612 is a deficient number, since it is larger than the sum of its proper divisors (57598308).

72241612 is a wasteful number, since it uses less digits than its factorization.

72241612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488160 (or 488158 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 72241612 is about 8499.5065739136. The cubic root of 72241612 is about 416.4815906224.

Adding to 72241612 its reverse (21614227), we get a palindrome (93855839).

It can be divided in two parts, 7224 and 1612, that added together give a square (8836 = 94²).

The spelling of 72241612 in words is "seventy-two million, two hundred forty-one thousand, six hundred twelve".