30473028 has 36 divisors (see below), whose sum is σ = 78340080. Its totient is φ = 9984816.

The previous prime is 30473011. The next prime is 30473041. The reversal of 30473028 is 82037403.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 30472992 and 30473010.

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 11 ways as a sum of consecutive naturals, for example, 5050 + ... + 9297.

Almost surely, 2^30473028 is an apocalyptic number.

It is an amenable number.

30473028 is an abundant number, since it is smaller than the sum of its proper divisors (47867052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30473028 is a wasteful number, since it uses less digits than its factorization.

30473028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14416 (or 14411 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30473028 is about 5520.2380383458. The cubic root of 30473028 is about 312.3478615178.

The spelling of 30473028 in words is "thirty million, four hundred seventy-three thousand, twenty-eight".