30047768 has 16 divisors (see below), whose sum is σ = 57134160. Its totient is φ = 14812000.

The previous prime is 30047753. The next prime is 30047791. The reversal of 30047768 is 86774003.

It is a congruent number.

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, 25883 + ... + 27018.

It is an arithmetic number, because the mean of its divisors is an integer number (3570885).

Almost surely, 2^30047768 is an apocalyptic number.

It is an amenable number.

30047768 is a deficient number, since it is larger than the sum of its proper divisors (27086392).

30047768 is a wasteful number, since it uses less digits than its factorization.

30047768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52978 (or 52974 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 30047768 is about 5481.5844424765. The cubic root of 30047768 is about 310.8880812330. Note that the first 3 decimals are identical.

The spelling of 30047768 in words is "thirty million, forty-seven thousand, seven hundred sixty-eight".