30169938 has 8 divisors (see below), whose sum is σ = 60339888. Its totient is φ = 10056644.

The previous prime is 30169933. The next prime is 30169939. The reversal of 30169938 is 83996103.

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

30169938 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 30169896 and 30169905.

It is not an unprimeable number, because it can be changed into a prime (30169933) 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 3 ways as a sum of consecutive naturals, for example, 2514156 + ... + 2514167.

It is an arithmetic number, because the mean of its divisors is an integer number (7542486).

Almost surely, 2^30169938 is an apocalyptic number.

30169938 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.

30169938 is a wasteful number, since it uses less digits than its factorization.

30169938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028328.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 30169938 is about 5492.7168141094. The cubic root of 30169938 is about 311.3088538890.

The spelling of 30169938 in words is "thirty million, one hundred sixty-nine thousand, nine hundred thirty-eight".