30428148 has 24 divisors (see below), whose sum is σ = 72340128. Its totient is φ = 9951136.

The previous prime is 30428141. The next prime is 30428159. The reversal of 30428148 is 84182403.

It is a super-3 number, since 3×30428148³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30428141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23286 + ... + 24557.

It is an arithmetic number, because the mean of its divisors is an integer number (3014172).

Almost surely, 2^30428148 is an apocalyptic number.

It is an amenable number.

30428148 is an abundant number, since it is smaller than the sum of its proper divisors (41911980).

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

30428148 is a wasteful number, since it uses less digits than its factorization.

30428148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47903 (or 47901 counting only the distinct ones).

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

The square root of 30428148 is about 5516.1714984217. The cubic root of 30428148 is about 312.1944465093.

The spelling of 30428148 in words is "thirty million, four hundred twenty-eight thousand, one hundred forty-eight".