72006244 has 12 divisors (see below), whose sum is σ = 126491904. Its totient is φ = 35865704.

The previous prime is 72006229. The next prime is 72006247. The reversal of 72006244 is 44260027.

It is not an unprimeable number, because it can be changed into a prime (72006247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33172 + ... + 35275.

It is an arithmetic number, because the mean of its divisors is an integer number (10540992).

Almost surely, 2^72006244 is an apocalyptic number.

It is an amenable number.

72006244 is a deficient number, since it is larger than the sum of its proper divisors (54485660).

72006244 is a wasteful number, since it uses less digits than its factorization.

72006244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68714 (or 68712 counting only the distinct ones).

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

The square root of 72006244 is about 8485.6492974904. The cubic root of 72006244 is about 416.0287902289.

The spelling of 72006244 in words is "seventy-two million, six thousand, two hundred forty-four".