72245752 has 16 divisors (see below), whose sum is σ = 142590600. Its totient is φ = 34221600.

The previous prime is 72245743. The next prime is 72245821. The reversal of 72245752 is 25754227.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237499 + ... + 237802.

Almost surely, 2^72245752 is an apocalyptic number.

It is an amenable number.

72245752 is a deficient number, since it is larger than the sum of its proper divisors (70344848).

72245752 is a wasteful number, since it uses less digits than its factorization.

72245752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475326 (or 475322 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 72245752 is about 8499.7501139739. The cubic root of 72245752 is about 416.4895463366.

Adding to 72245752 its reverse (25754227), we get a palindrome (97999979).

The spelling of 72245752 in words is "seventy-two million, two hundred forty-five thousand, seven hundred fifty-two".