30242928 has 60 divisors (see below), whose sum is σ = 79913288. Its totient is φ = 9855360.

The previous prime is 30242917. The next prime is 30242939. The reversal of 30242928 is 82924203.

It is an interprime number because it is at equal distance from previous prime (30242917) and next prime (30242939).

It is a junction number, because it is equal to n+sod(n) for n = 30242895 and 30242904.

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 11 ways as a sum of consecutive naturals, for example, 166998 + ... + 167178.

Almost surely, 2^30242928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30242928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39956644).

30242928 is an abundant number, since it is smaller than the sum of its proper divisors (49670360).

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

30242928 is a wasteful number, since it uses less digits than its factorization.

30242928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 30242928 is about 5499.3570533291. The cubic root of 30242928 is about 311.5597010926.

The spelling of 30242928 in words is "thirty million, two hundred forty-two thousand, nine hundred twenty-eight".