30428248 has 16 divisors (see below), whose sum is σ = 57471480. Its totient is φ = 15102528.

The previous prime is 30428243. The next prime is 30428269. The reversal of 30428248 is 84282403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30428243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12786 + ... + 14977.

Almost surely, 2^30428248 is an apocalyptic number.

It is an amenable number.

30428248 is a deficient number, since it is larger than the sum of its proper divisors (27043232).

30428248 is a wasteful number, since it uses less digits than its factorization.

30428248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27906 (or 27902 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 30428248 is about 5516.1805626720. The cubic root of 30428248 is about 312.1947885107.

The spelling of 30428248 in words is "thirty million, four hundred twenty-eight thousand, two hundred forty-eight".