30344428 has 12 divisors (see below), whose sum is σ = 54398232. Its totient is φ = 14802080.

The previous prime is 30344407. The next prime is 30344437. The reversal of 30344428 is 82444303.

It is a junction number, because it is equal to n+sod(n) for n = 30344396 and 30344405.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 92350 + ... + 92677.

It is an arithmetic number, because the mean of its divisors is an integer number (4533186).

Almost surely, 2^30344428 is an apocalyptic number.

It is an amenable number.

30344428 is a deficient number, since it is larger than the sum of its proper divisors (24053804).

30344428 is a wasteful number, since it uses less digits than its factorization.

30344428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185072 (or 185070 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 30344428 is about 5508.5776748631. The cubic root of 30344428 is about 311.9078595985.

The spelling of 30344428 in words is "thirty million, three hundred forty-four thousand, four hundred twenty-eight".