30873249 has 24 divisors (see below), whose sum is σ = 48926592. Its totient is φ = 18604320.

The previous prime is 30873229. The next prime is 30873253. The reversal of 30873249 is 94237803.

It is not a de Polignac number, because 30873249 - 2¹⁶ = 30807713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30873229) 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 23 ways as a sum of consecutive naturals, for example, 18712 + ... + 20294.

It is an arithmetic number, because the mean of its divisors is an integer number (2038608).

Almost surely, 2^30873249 is an apocalyptic number.

It is an amenable number.

30873249 is a deficient number, since it is larger than the sum of its proper divisors (18053343).

30873249 is a wasteful number, since it uses less digits than its factorization.

30873249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797 (or 1794 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 30873249 is about 5556.3701280602. The cubic root of 30873249 is about 313.7093372274.

It can be divided in two parts, 3087 and 3249, that added together give a palindrome (6336).

The spelling of 30873249 in words is "thirty million, eight hundred seventy-three thousand, two hundred forty-nine".