239661338 has 16 divisors (see below), whose sum is σ = 415800000. Its totient is φ = 101474016.

The previous prime is 239661329. The next prime is 239661347. The reversal of 239661338 is 833166932.

It is an interprime number because it is at equal distance from previous prime (239661329) and next prime (239661347).

It is a junction number, because it is equal to n+sod(n) for n = 239661295 and 239661304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101963 + ... + 104286.

It is an arithmetic number, because the mean of its divisors is an integer number (25987500).

Almost surely, 2^239661338 is an apocalyptic number.

239661338 is a deficient number, since it is larger than the sum of its proper divisors (176138662).

239661338 is a wasteful number, since it uses less digits than its factorization.

239661338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206341.

The product of its digits is 139968, while the sum is 41.

The square root of 239661338 is about 15480.9992571539. Note that the first 3 decimals coincide. The cubic root of 239661338 is about 621.1540575997.

The spelling of 239661338 in words is "two hundred thirty-nine million, six hundred sixty-one thousand, three hundred thirty-eight".