30520297228 has 12 divisors (see below), whose sum is σ = 53425328320. Its totient is φ = 15255917712.

The previous prime is 30520297193. The next prime is 30520297229. The reversal of 30520297228 is 82279202503.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30520297229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1041468 + ... + 1070371.

Almost surely, 2^30520297228 is an apocalyptic number.

It is an amenable number.

30520297228 is a deficient number, since it is larger than the sum of its proper divisors (22905031092).

30520297228 is a wasteful number, since it uses less digits than its factorization.

30520297228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115456 (or 2115454 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 30520297228 in words is "thirty billion, five hundred twenty million, two hundred ninety-seven thousand, two hundred twenty-eight".