72286918 has 16 divisors (see below), whose sum is σ = 120294720. Its totient is φ = 32300200.

The previous prime is 72286901. The next prime is 72286927. The reversal of 72286918 is 81968227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26548 + ... + 29143.

It is an arithmetic number, because the mean of its divisors is an integer number (7518420).

Almost surely, 2^72286918 is an apocalyptic number.

72286918 is a deficient number, since it is larger than the sum of its proper divisors (48007802).

72286918 is a wasteful number, since it uses less digits than its factorization.

72286918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55763.

The product of its digits is 96768, while the sum is 43.

The square root of 72286918 is about 8502.1713697149. The cubic root of 72286918 is about 416.5686372762.

The spelling of 72286918 in words is "seventy-two million, two hundred eighty-six thousand, nine hundred eighteen".