30499839 has 12 divisors (see below), whose sum is σ = 44266872. Its totient is φ = 20235600.

The previous prime is 30499829. The next prime is 30499841. The reversal of 30499839 is 93899403.

It is not a de Polignac number, because 30499839 - 2⁸ = 30499583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30499794 and 30499803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30499829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6132 + ... + 9929.

It is an arithmetic number, because the mean of its divisors is an integer number (3688906).

Almost surely, 2^30499839 is an apocalyptic number.

30499839 is a deficient number, since it is larger than the sum of its proper divisors (13767033).

30499839 is a wasteful number, since it uses less digits than its factorization.

30499839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16278 (or 16275 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 30499839 is about 5522.6659323193. The cubic root of 30499839 is about 312.4394387176.

The spelling of 30499839 in words is "thirty million, four hundred ninety-nine thousand, eight hundred thirty-nine".