232239639 has 8 divisors (see below), whose sum is σ = 318022000. Its totient is φ = 150641856.

The previous prime is 232239619. The next prime is 232239653. The reversal of 232239639 is 936932232.

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

It is not a de Polignac number, because 232239639 - 2¹² = 232235543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232239597 and 232239606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232239619) 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 7 ways as a sum of consecutive naturals, for example, 1046014 + ... + 1046235.

It is an arithmetic number, because the mean of its divisors is an integer number (39752750).

Almost surely, 2^232239639 is an apocalyptic number.

232239639 is a deficient number, since it is larger than the sum of its proper divisors (85782361).

232239639 is a wasteful number, since it uses less digits than its factorization.

232239639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092289.

The product of its digits is 104976, while the sum is 39.

The square root of 232239639 is about 15239.4107169536. The cubic root of 232239639 is about 614.6748575454.

The spelling of 232239639 in words is "two hundred thirty-two million, two hundred thirty-nine thousand, six hundred thirty-nine".