30128098 has 64 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 10656000.

The previous prime is 30128093. The next prime is 30128099. The reversal of 30128098 is 89082103.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30128093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202128 + ... + 202276.

It is an arithmetic number, because the mean of its divisors is an integer number (963900).

Almost surely, 2^30128098 is an apocalyptic number.

30128098 is an abundant number, since it is smaller than the sum of its proper divisors (31561502).

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

30128098 is a wasteful number, since it uses less digits than its factorization.

30128098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 30128098 is about 5488.9068128362. The cubic root of 30128098 is about 311.1648784717.

The spelling of 30128098 in words is "thirty million, one hundred twenty-eight thousand, ninety-eight".