30484128 has 48 divisors (see below), whose sum is σ = 84732480. Its totient is φ = 9563136.

The previous prime is 30484117. The next prime is 30484141. The reversal of 30484128 is 82148403.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 30484095 and 30484104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7708 + ... + 10971.

It is an arithmetic number, because the mean of its divisors is an integer number (1765260).

Almost surely, 2^30484128 is an apocalyptic number.

It is an amenable number.

30484128 is an abundant number, since it is smaller than the sum of its proper divisors (54248352).

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

30484128 is a wasteful number, since it uses less digits than its factorization.

30484128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18709 (or 18701 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 30484128 is about 5521.2433382346. The cubic root of 30484128 is about 312.3857818319.

The spelling of 30484128 in words is "thirty million, four hundred eighty-four thousand, one hundred twenty-eight".