72360320 has 32 divisors (see below), whose sum is σ = 172987920. Its totient is φ = 28943872.

The previous prime is 72360283. The next prime is 72360329. The reversal of 72360320 is 2306327.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72360329) 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, 55892 + ... + 57171.

Almost surely, 2^72360320 is an apocalyptic number.

It is an amenable number.

72360320 is an abundant number, since it is smaller than the sum of its proper divisors (100627600).

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

72360320 is a wasteful number, since it uses less digits than its factorization.

72360320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113082 (or 113070 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 72360320 is about 8506.4869364503. The cubic root of 72360320 is about 416.7095877563.

Adding to 72360320 its reverse (2306327), we get a palindrome (74666647).

The spelling of 72360320 in words is "seventy-two million, three hundred sixty thousand, three hundred twenty".