30438197 has 8 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 28972720.

The previous prime is 30438193. The next prime is 30438229. The reversal of 30438197 is 79183403.

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

It is a cyclic number.

It is not a de Polignac number, because 30438197 - 2² = 30438193 is a prime.

It is a super-2 number, since 2×30438197² = 1852967673221618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30438193) 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 7 ways as a sum of consecutive naturals, for example, 5333 + ... + 9450.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^30438197 is an apocalyptic number.

It is an amenable number.

30438197 is a deficient number, since it is larger than the sum of its proper divisors (1495243).

30438197 is a wasteful number, since it uses less digits than its factorization.

30438197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14883.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 30438197 is about 5517.0822904865. The cubic root of 30438197 is about 312.2288104881.

The spelling of 30438197 in words is "thirty million, four hundred thirty-eight thousand, one hundred ninety-seven".