30239473 has 12 divisors (see below), whose sum is σ = 33650064. Its totient is φ = 27150200.

The previous prime is 30239453. The next prime is 30239491. The reversal of 30239473 is 37493203.

It is not a de Polignac number, because 30239473 - 2⁹ = 30238961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30239423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8538 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (2804172).

Almost surely, 2^30239473 is an apocalyptic number.

It is an amenable number.

30239473 is a deficient number, since it is larger than the sum of its proper divisors (3410591).

30239473 is a wasteful number, since it uses less digits than its factorization.

30239473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3116 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 30239473 is about 5499.0429167265. The cubic root of 30239473 is about 311.5478362828.

The spelling of 30239473 in words is "thirty million, two hundred thirty-nine thousand, four hundred seventy-three".