72736252 has 6 divisors (see below), whose sum is σ = 127288448. Its totient is φ = 36368124.

The previous prime is 72736201. The next prime is 72736259. The reversal of 72736252 is 25263727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72736259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9092028 + ... + 9092035.

Almost surely, 2^72736252 is an apocalyptic number.

It is an amenable number.

72736252 is a deficient number, since it is larger than the sum of its proper divisors (54552196).

72736252 is a wasteful number, since it uses less digits than its factorization.

72736252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18184067 (or 18184065 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 72736252 is about 8528.5550945046. Note that the first 3 decimals coincide. The cubic root of 72736252 is about 417.4299824017.

Adding to 72736252 its reverse (25263727), we get a palindrome (97999979).

The spelling of 72736252 in words is "seventy-two million, seven hundred thirty-six thousand, two hundred fifty-two".