238664263 has 8 divisors (see below), whose sum is σ = 255484800. Its totient is φ = 222269688.

The previous prime is 238664227. The next prime is 238664267. The reversal of 238664263 is 362466832.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238664263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238664267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105331 + ... + 107572.

It is an arithmetic number, because the mean of its divisors is an integer number (31935600).

Almost surely, 2^238664263 is an apocalyptic number.

238664263 is a deficient number, since it is larger than the sum of its proper divisors (16820537).

238664263 is a wasteful number, since it uses less digits than its factorization.

238664263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212981.

The product of its digits is 248832, while the sum is 40.

The square root of 238664263 is about 15448.7625070748. The cubic root of 238664263 is about 620.2914541940.

The spelling of 238664263 in words is "two hundred thirty-eight million, six hundred sixty-four thousand, two hundred sixty-three".