30281452072 has 8 divisors (see below), whose sum is σ = 56777722650. Its totient is φ = 15140726032.

The previous prime is 30281452039. The next prime is 30281452073. The reversal of 30281452072 is 27025418203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15889610916 + 14391841156 = 126054^2 + 119966^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (30281452073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1892590747 + ... + 1892590762.

Almost surely, 2^30281452072 is an apocalyptic number.

It is an amenable number.

30281452072 is a deficient number, since it is larger than the sum of its proper divisors (26496270578).

30281452072 is a wasteful number, since it uses less digits than its factorization.

30281452072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3785181515 (or 3785181511 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 30281452072 in words is "thirty billion, two hundred eighty-one million, four hundred fifty-two thousand, seventy-two".