72418412 has 12 divisors (see below), whose sum is σ = 138253416. Its totient is φ = 32917440.

The previous prime is 72418403. The next prime is 72418417. The reversal of 72418412 is 21481427.

It is not an unprimeable number, because it can be changed into a prime (72418417) 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, 822893 + ... + 822980.

It is an arithmetic number, because the mean of its divisors is an integer number (11521118).

Almost surely, 2^72418412 is an apocalyptic number.

It is an amenable number.

72418412 is a deficient number, since it is larger than the sum of its proper divisors (65835004).

72418412 is a wasteful number, since it uses less digits than its factorization.

72418412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645888 (or 1645886 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 72418412 is about 8509.9008219838. The cubic root of 72418412 is about 416.8210715926.

Adding to 72418412 its reverse (21481427), we get a palindrome (93899839).

The spelling of 72418412 in words is "seventy-two million, four hundred eighteen thousand, four hundred twelve".