72067236 has 12 divisors (see below), whose sum is σ = 168156912. Its totient is φ = 24022408.

The previous prime is 72067223. The next prime is 72067241. The reversal of 72067236 is 63276027.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 72067197 and 72067206.

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 3 ways as a sum of consecutive naturals, for example, 3002790 + ... + 3002813.

It is an arithmetic number, because the mean of its divisors is an integer number (14013076).

Almost surely, 2^72067236 is an apocalyptic number.

It is an amenable number.

72067236 is an abundant number, since it is smaller than the sum of its proper divisors (96089676).

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

72067236 is a wasteful number, since it uses less digits than its factorization.

72067236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005610 (or 6005608 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 72067236 is about 8489.2423690221. The cubic root of 72067236 is about 416.1462210958.

The spelling of 72067236 in words is "seventy-two million, sixty-seven thousand, two hundred thirty-six".