72544206 has 48 divisors (see below), whose sum is σ = 169675776. Its totient is φ = 20616624.

The previous prime is 72544201. The next prime is 72544243. The reversal of 72544206 is 60244527.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72544201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66195 + ... + 67281.

It is an arithmetic number, because the mean of its divisors is an integer number (3534912).

Almost surely, 2^72544206 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72544206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84837888).

72544206 is an abundant number, since it is smaller than the sum of its proper divisors (97131570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72544206 is a wasteful number, since it uses less digits than its factorization.

72544206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 72544206 is about 8517.2886530867. The cubic root of 72544206 is about 417.0622775597.

The spelling of 72544206 in words is "seventy-two million, five hundred forty-four thousand, two hundred six".