72418012 has 12 divisors (see below), whose sum is σ = 128516976. Its totient is φ = 35698880.

The previous prime is 72418001. The next prime is 72418019. The reversal of 72418012 is 21081427.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72418019) 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, 127213 + ... + 127780.

It is an arithmetic number, because the mean of its divisors is an integer number (10709748).

Almost surely, 2^72418012 is an apocalyptic number.

It is an amenable number.

72418012 is a deficient number, since it is larger than the sum of its proper divisors (56098964).

72418012 is a wasteful number, since it uses less digits than its factorization.

72418012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255068 (or 255066 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 72418012 is about 8509.8773199148. The cubic root of 72418012 is about 416.8203041601.

Adding to 72418012 its reverse (21081427), we get a palindrome (93499439).

The spelling of 72418012 in words is "seventy-two million, four hundred eighteen thousand, twelve".