72118846 has 16 divisors (see below), whose sum is σ = 115935264. Its totient is φ = 33558624.

The previous prime is 72118841. The next prime is 72118873. The reversal of 72118846 is 64881127.

It is a super-2 number, since 2×72118846² = 10402255896743432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72118841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19485 + ... + 22888.

It is an arithmetic number, because the mean of its divisors is an integer number (7245954).

Almost surely, 2^72118846 is an apocalyptic number.

72118846 is a deficient number, since it is larger than the sum of its proper divisors (43816418).

72118846 is a wasteful number, since it uses less digits than its factorization.

72118846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42435.

The product of its digits is 21504, while the sum is 37.

The square root of 72118846 is about 8492.2815544470. The cubic root of 72118846 is about 416.2455365999.

The spelling of 72118846 in words is "seventy-two million, one hundred eighteen thousand, eight hundred forty-six".