239830385 has 8 divisors (see below), whose sum is σ = 287889576. Its totient is φ = 191802240.

The previous prime is 239830379. The next prime is 239830399. The reversal of 239830385 is 583038932.

239830385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 127215841 + 112614544 = 11279^2 + 10612^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-239830385 is a prime.

It is a super-2 number, since 2×239830385² = 115037227138496450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15677 + ... + 26933.

It is an arithmetic number, because the mean of its divisors is an integer number (35986197).

Almost surely, 2^239830385 is an apocalyptic number.

It is an amenable number.

239830385 is a deficient number, since it is larger than the sum of its proper divisors (48059191).

239830385 is a wasteful number, since it uses less digits than its factorization.

239830385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15523.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 239830385 is about 15486.4581166902. The cubic root of 239830385 is about 621.3000685666.

The spelling of 239830385 in words is "two hundred thirty-nine million, eight hundred thirty thousand, three hundred eighty-five".