238971633 has 8 divisors (see below), whose sum is σ = 332482368. Its totient is φ = 152387664.

The previous prime is 238971631. The next prime is 238971643. The reversal of 238971633 is 336179832.

It is a happy number.

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

It is not a de Polignac number, because 238971633 - 2¹ = 238971631 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238971631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731610 + ... + 1731747.

It is an arithmetic number, because the mean of its divisors is an integer number (41560296).

Almost surely, 2^238971633 is an apocalyptic number.

238971633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

238971633 is a deficient number, since it is larger than the sum of its proper divisors (93510735).

238971633 is a wasteful number, since it uses less digits than its factorization.

238971633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463383.

The product of its digits is 163296, while the sum is 42.

The square root of 238971633 is about 15458.7073521689. The cubic root of 238971633 is about 620.5576261406.

The spelling of 238971633 in words is "two hundred thirty-eight million, nine hundred seventy-one thousand, six hundred thirty-three".