30139329 has 16 divisors (see below), whose sum is σ = 43948224. Its totient is φ = 18220800.

The previous prime is 30139313. The next prime is 30139337. The reversal of 30139329 is 92393103.

It is not a de Polignac number, because 30139329 - 2⁴ = 30139313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30139296 and 30139305.

It is not an unprimeable number, because it can be changed into a prime (30139129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16317 + ... + 18069.

It is an arithmetic number, because the mean of its divisors is an integer number (2746764).

Almost surely, 2^30139329 is an apocalyptic number.

It is an amenable number.

30139329 is a deficient number, since it is larger than the sum of its proper divisors (13808895).

30139329 is a wasteful number, since it uses less digits than its factorization.

30139329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 30139329 is about 5489.9297809717. The cubic root of 30139329 is about 311.2035384915.

The spelling of 30139329 in words is "thirty million, one hundred thirty-nine thousand, three hundred twenty-nine".