72344212 has 24 divisors (see below), whose sum is σ = 131362560. Its totient is φ = 34819680.

The previous prime is 72344201. The next prime is 72344257. The reversal of 72344212 is 21244327.

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 7 ways as a sum of consecutive naturals, for example, 49273 + ... + 50719.

It is an arithmetic number, because the mean of its divisors is an integer number (5473440).

Almost surely, 2^72344212 is an apocalyptic number.

It is an amenable number.

72344212 is a deficient number, since it is larger than the sum of its proper divisors (59018348).

72344212 is a wasteful number, since it uses less digits than its factorization.

72344212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911 (or 1909 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 72344212 is about 8505.5400769146. The cubic root of 72344212 is about 416.6786644723.

Adding to 72344212 its reverse (21244327), we get a palindrome (93588539).

The spelling of 72344212 in words is "seventy-two million, three hundred forty-four thousand, two hundred twelve".