30168473 has 4 divisors (see below), whose sum is σ = 30195408. Its totient is φ = 30141540.

The previous prime is 30168461. The next prime is 30168511. The reversal of 30168473 is 37486103.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37486103 = 5087 ⋅7369.

It is a de Polignac number, because none of the positive numbers 2^k-30168473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30168373) 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, 11711 + ... + 14052.

It is an arithmetic number, because the mean of its divisors is an integer number (7548852).

Almost surely, 2^30168473 is an apocalyptic number.

It is an amenable number.

30168473 is a deficient number, since it is larger than the sum of its proper divisors (26935).

30168473 is a wasteful number, since it uses less digits than its factorization.

30168473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26934.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 30168473 is about 5492.5834540770. The cubic root of 30168473 is about 311.3038149343.

The spelling of 30168473 in words is "thirty million, one hundred sixty-eight thousand, four hundred seventy-three".