72249118 has 8 divisors (see below), whose sum is σ = 113085648. Its totient is φ = 34553904.

The previous prime is 72249091. The next prime is 72249119. The reversal of 72249118 is 81194227.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72249119) 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, 785271 + ... + 785362.

It is an arithmetic number, because the mean of its divisors is an integer number (14135706).

Almost surely, 2^72249118 is an apocalyptic number.

72249118 is a deficient number, since it is larger than the sum of its proper divisors (40836530).

72249118 is a wasteful number, since it uses less digits than its factorization.

72249118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570658.

The product of its digits is 8064, while the sum is 34.

The square root of 72249118 is about 8499.9481174887. The cubic root of 72249118 is about 416.4960144541.

The spelling of 72249118 in words is "seventy-two million, two hundred forty-nine thousand, one hundred eighteen".