72814518 has 32 divisors (see below), whose sum is σ = 184926720. Its totient is φ = 20804040.

The previous prime is 72814513. The next prime is 72814529. The reversal of 72814518 is 81541827.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72814513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95938 + ... + 96693.

It is an arithmetic number, because the mean of its divisors is an integer number (5778960).

Almost surely, 2^72814518 is an apocalyptic number.

72814518 is an abundant number, since it is smaller than the sum of its proper divisors (112112202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72814518 is a wasteful number, since it uses less digits than its factorization.

72814518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192649 (or 192643 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 72814518 is about 8533.1423285915. The cubic root of 72814518 is about 417.5796503824.

The spelling of 72814518 in words is "seventy-two million, eight hundred fourteen thousand, five hundred eighteen".