72018366 has 16 divisors (see below), whose sum is σ = 164613504. Its totient is φ = 20576664.

The previous prime is 72018319. The next prime is 72018377. The reversal of 72018366 is 66381027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857320 + ... + 857403.

It is an arithmetic number, because the mean of its divisors is an integer number (10288344).

Almost surely, 2^72018366 is an apocalyptic number.

72018366 is an abundant number, since it is smaller than the sum of its proper divisors (92595138).

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

72018366 is a wasteful number, since it uses less digits than its factorization.

72018366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714735.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 72018366 is about 8486.3635321615. The cubic root of 72018366 is about 416.0521345841.

The spelling of 72018366 in words is "seventy-two million, eighteen thousand, three hundred sixty-six".