30386238 has 8 divisors (see below), whose sum is σ = 60772488. Its totient is φ = 10128744.

The previous prime is 30386233. The next prime is 30386269. The reversal of 30386238 is 83268303.

It is a sphenic number, since it is the product of 3 distinct primes.

30386238 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30386199 and 30386208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30386233) 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, 2532181 + ... + 2532192.

It is an arithmetic number, because the mean of its divisors is an integer number (7596561).

Almost surely, 2^30386238 is an apocalyptic number.

30386238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30386238 is a wasteful number, since it uses less digits than its factorization.

30386238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5064378.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 30386238 is about 5512.3713590432. The cubic root of 30386238 is about 312.0510476961.

The spelling of 30386238 in words is "thirty million, three hundred eighty-six thousand, two hundred thirty-eight".