30115628 has 6 divisors (see below), whose sum is σ = 52702356. Its totient is φ = 15057812.

The previous prime is 30115621. The next prime is 30115633. The reversal of 30115628 is 82651103.

It is a junction number, because it is equal to n+sod(n) for n = 30115597 and 30115606.

It is not an unprimeable number, because it can be changed into a prime (30115621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3764450 + ... + 3764457.

It is an arithmetic number, because the mean of its divisors is an integer number (8783726).

Almost surely, 2^30115628 is an apocalyptic number.

It is an amenable number.

30115628 is a deficient number, since it is larger than the sum of its proper divisors (22586728).

30115628 is a wasteful number, since it uses less digits than its factorization.

30115628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528911 (or 7528909 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 30115628 is about 5487.7707678073. The cubic root of 30115628 is about 311.1219422344.

The spelling of 30115628 in words is "thirty million, one hundred fifteen thousand, six hundred twenty-eight".