72112236 has 24 divisors (see below), whose sum is σ = 192299520. Its totient is φ = 20603472.

The previous prime is 72112217. The next prime is 72112237. The reversal of 72112236 is 63221127.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (72112237) by changing a digit.

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, 429156 + ... + 429323.

It is an arithmetic number, because the mean of its divisors is an integer number (8012480).

Almost surely, 2^72112236 is an apocalyptic number.

It is an amenable number.

72112236 is an abundant number, since it is smaller than the sum of its proper divisors (120187284).

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

72112236 is a wasteful number, since it uses less digits than its factorization.

72112236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858493 (or 858491 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 72112236 is about 8491.8923686067. The cubic root of 72112236 is about 416.2328193181.

The spelling of 72112236 in words is "seventy-two million, one hundred twelve thousand, two hundred thirty-six".