30800238 has 16 divisors (see below), whose sum is σ = 70400640. Its totient is φ = 8800056.

The previous prime is 30800219. The next prime is 30800251. The reversal of 30800238 is 83200803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366628 + ... + 366711.

It is an arithmetic number, because the mean of its divisors is an integer number (4400040).

Almost surely, 2^30800238 is an apocalyptic number.

30800238 is an abundant number, since it is smaller than the sum of its proper divisors (39600402).

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

30800238 is a wasteful number, since it uses less digits than its factorization.

30800238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733351.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30800238 is about 5549.7962124748. The cubic root of 30800238 is about 313.4618488457.

The spelling of 30800238 in words is "thirty million, eight hundred thousand, two hundred thirty-eight".