72300344452 has 24 divisors (see below), whose sum is σ = 144972434880. Its totient is φ = 30906202080.

The previous prime is 72300344449. The next prime is 72300344521. The reversal of 72300344452 is 25444300327.

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, 3308074 + ... + 3329857.

It is an arithmetic number, because the mean of its divisors is an integer number (6040518120).

Almost surely, 2^72300344452 is an apocalyptic number.

It is an amenable number.

72300344452 is an abundant number, since it is smaller than the sum of its proper divisors (72672090428).

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

72300344452 is a wasteful number, since it uses less digits than its factorization.

72300344452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638331 (or 6638329 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 34.

Adding to 72300344452 its reverse (25444300327), we get a palindrome (97744644779).

The spelling of 72300344452 in words is "seventy-two billion, three hundred million, three hundred forty-four thousand, four hundred fifty-two".