238891366 has 12 divisors (see below), whose sum is σ = 416841228. Its totient is φ = 102381972.

The previous prime is 238891319. The next prime is 238891399. The reversal of 238891366 is 663198832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1218736 + ... + 1218931.

It is an arithmetic number, because the mean of its divisors is an integer number (34736769).

Almost surely, 2^238891366 is an apocalyptic number.

238891366 is a deficient number, since it is larger than the sum of its proper divisors (177949862).

238891366 is a wasteful number, since it uses less digits than its factorization.

238891366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2437683 (or 2437676 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 238891366 is about 15456.1109597466. The cubic root of 238891366 is about 620.4881396828.

The spelling of 238891366 in words is "two hundred thirty-eight million, eight hundred ninety-one thousand, three hundred sixty-six".