72371120 has 40 divisors (see below), whose sum is σ = 169301664. Its totient is φ = 28769792.

The previous prime is 72371119. The next prime is 72371141. The reversal of 72371120 is 2117327.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10652 + ... + 16068.

Almost surely, 2^72371120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72371120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84650832).

72371120 is an abundant number, since it is smaller than the sum of its proper divisors (96930544).

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

72371120 is a wasteful number, since it uses less digits than its factorization.

72371120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597 (or 5591 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 72371120 is about 8507.1217224159. The cubic root of 72371120 is about 416.7303184536.

Adding to 72371120 its reverse (2117327), we get a palindrome (74488447).

The spelling of 72371120 in words is "seventy-two million, three hundred seventy-one thousand, one hundred twenty".