30048728 has 16 divisors (see below), whose sum is σ = 59307000. Its totient is φ = 14233536.

The previous prime is 30048719. The next prime is 30048731. The reversal of 30048728 is 82784003.

It is a junction number, because it is equal to n+sod(n) for n = 30048694 and 30048703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98693 + ... + 98996.

Almost surely, 2^30048728 is an apocalyptic number.

30048728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30048728 is a deficient number, since it is larger than the sum of its proper divisors (29258272).

30048728 is a wasteful number, since it uses less digits than its factorization.

30048728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197714 (or 197710 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 30048728 is about 5481.6720076998. The cubic root of 30048728 is about 310.8913920655.

The spelling of 30048728 in words is "thirty million, forty-eight thousand, seven hundred twenty-eight".