30970239 has 8 divisors (see below), whose sum is σ = 41448240. Its totient is φ = 20569536.

The previous prime is 30970237. The next prime is 30970253. The reversal of 30970239 is 93207903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30970239 - 2¹ = 30970237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18382 + ... + 19995.

It is an arithmetic number, because the mean of its divisors is an integer number (5181030).

Almost surely, 2^30970239 is an apocalyptic number.

30970239 is a deficient number, since it is larger than the sum of its proper divisors (10478001).

30970239 is a wasteful number, since it uses less digits than its factorization.

30970239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38649.

The product of its (nonzero) digits is 10206, while the sum is 33.

The square root of 30970239 is about 5565.0911043756. The cubic root of 30970239 is about 314.0375054934.

The spelling of 30970239 in words is "thirty million, nine hundred seventy thousand, two hundred thirty-nine".