238555705 has 8 divisors (see below), whose sum is σ = 288189000. Its totient is φ = 189563136.

The previous prime is 238555663. The next prime is 238555717. The reversal of 238555705 is 507555832.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18567481 + 219988224 = 4309^2 + 14832^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 238555705 - 2⁹ = 238555193 is a prime.

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, 159360 + ... + 160849.

It is an arithmetic number, because the mean of its divisors is an integer number (36023625).

Almost surely, 2^238555705 is an apocalyptic number.

It is an amenable number.

238555705 is a deficient number, since it is larger than the sum of its proper divisors (49633295).

238555705 is a wasteful number, since it uses less digits than its factorization.

238555705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320363.

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 238555705 is about 15445.2486221491. The cubic root of 238555705 is about 620.1973920569.

The spelling of 238555705 in words is "two hundred thirty-eight million, five hundred fifty-five thousand, seven hundred five".