30394473 has 4 divisors (see below), whose sum is σ = 40525968. Its totient is φ = 20262980.

The previous prime is 30394459. The next prime is 30394519. The reversal of 30394473 is 37449303.

Added to its reverse (37449303) it gives a triangular number (67843776 = T₁₁₆₄₈).

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.

It is a cyclic number.

It is not a de Polignac number, because 30394473 - 2¹⁰ = 30393449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30394423) 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, 5065743 + ... + 5065748.

It is an arithmetic number, because the mean of its divisors is an integer number (10131492).

Almost surely, 2^30394473 is an apocalyptic number.

It is an amenable number.

30394473 is a deficient number, since it is larger than the sum of its proper divisors (10131495).

30394473 is a wasteful number, since it uses less digits than its factorization.

30394473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131494.

The product of its (nonzero) digits is 27216, while the sum is 33.

The square root of 30394473 is about 5513.1182646484. The cubic root of 30394473 is about 312.0792348891.

Adding to 30394473 its reverse (37449303), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 30394473 in words is "thirty million, three hundred ninety-four thousand, four hundred seventy-three".