72235336 has 8 divisors (see below), whose sum is σ = 135441270. Its totient is φ = 36117664.

The previous prime is 72235333. The next prime is 72235351. The reversal of 72235336 is 63353227.

It can be written as a sum of positive squares in only one way, i.e., 72080100 + 155236 = 8490^2 + 394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 72235298 and 72235307.

It is not an unprimeable number, because it can be changed into a prime (72235333) 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 as a sum of consecutive naturals, namely, 4514701 + ... + 4514716.

Almost surely, 2^72235336 is an apocalyptic number.

It is an amenable number.

72235336 is a deficient number, since it is larger than the sum of its proper divisors (63205934).

72235336 is a wasteful number, since it uses less digits than its factorization.

72235336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9029423 (or 9029419 counting only the distinct ones).

The product of its digits is 22680, while the sum is 31.

The square root of 72235336 is about 8499.1373679921. The cubic root of 72235336 is about 416.4695296413.

The spelling of 72235336 in words is "seventy-two million, two hundred thirty-five thousand, three hundred thirty-six".