72492000320 has 56 divisors (see below), whose sum is σ = 172667295000. Its totient is φ = 28989120512.

The previous prime is 72492000283. The next prime is 72492000337. The reversal of 72492000320 is 2300029427.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 242861056 + 72249139264 = 15584^2 + 268792^2 .

It is a super-2 number, since 2×72492000320² (a number of 23 digits) contains 22 as substring.

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, 1267706 + ... + 1323654.

Almost surely, 2^72492000320 is an apocalyptic number.

It is an amenable number.

72492000320 is an abundant number, since it is smaller than the sum of its proper divisors (100175294680).

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

72492000320 is a wasteful number, since it uses less digits than its factorization.

72492000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60015 (or 60005 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 72492000320 its reverse (2300029427), we get a palindrome (74792029747).

The spelling of 72492000320 in words is "seventy-two billion, four hundred ninety-two million, three hundred twenty", and thus it is an aban number.