72010720 has 24 divisors (see below), whose sum is σ = 170125704. Its totient is φ = 28804224.

The previous prime is 72010711. The next prime is 72010751. The reversal of 72010720 is 2701027.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224874 + ... + 225193.

It is an arithmetic number, because the mean of its divisors is an integer number (7088571).

Almost surely, 2^72010720 is an apocalyptic number.

It is an amenable number.

72010720 is an abundant number, since it is smaller than the sum of its proper divisors (98114984).

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

72010720 is a wasteful number, since it uses less digits than its factorization.

72010720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450082 (or 450074 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 72010720 is about 8485.9130327856. The cubic root of 72010720 is about 416.0374103437.

Adding to 72010720 its reverse (2701027), we get a palindrome (74711747).

The spelling of 72010720 in words is "seventy-two million, ten thousand, seven hundred twenty".