30438117 has 6 divisors (see below), whose sum is σ = 43966182. Its totient is φ = 20292072.

The previous prime is 30438103. The next prime is 30438119. The reversal of 30438117 is 71183403.

It can be written as a sum of positive squares in only one way, i.e., 24117921 + 6320196 = 4911^2 + 2514^2 .

It is not a de Polignac number, because 30438117 - 2⁴ = 30438101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30438119) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1690998 + ... + 1691015.

It is an arithmetic number, because the mean of its divisors is an integer number (7327697).

Almost surely, 2^30438117 is an apocalyptic number.

It is an amenable number.

30438117 is a deficient number, since it is larger than the sum of its proper divisors (13528065).

30438117 is a wasteful number, since it uses less digits than its factorization.

30438117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382019 (or 3382016 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 30438117 is about 5517.0750402727. The cubic root of 30438117 is about 312.2285369466.

The spelling of 30438117 in words is "thirty million, four hundred thirty-eight thousand, one hundred seventeen".