72360220 has 24 divisors (see below), whose sum is σ = 157197600. Its totient is φ = 27945792.

The previous prime is 72360199. The next prime is 72360221. The reversal of 72360220 is 2206327.

It is a junction number, because it is equal to n+sod(n) for n = 72360191 and 72360200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72360221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61800 + ... + 62959.

It is an arithmetic number, because the mean of its divisors is an integer number (6549900).

Almost surely, 2^72360220 is an apocalyptic number.

It is an amenable number.

72360220 is an abundant number, since it is smaller than the sum of its proper divisors (84837380).

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

72360220 is a wasteful number, since it uses less digits than its factorization.

72360220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124797 (or 124795 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 72360220 is about 8506.4810585812. The cubic root of 72360220 is about 416.7093957958.

Adding to 72360220 its reverse (2206327), we get a palindrome (74566547).

The spelling of 72360220 in words is "seventy-two million, three hundred sixty thousand, two hundred twenty".