238631064 has 64 divisors (see below), whose sum is σ = 682947840. Its totient is φ = 68065920.

The previous prime is 238631033. The next prime is 238631077. The reversal of 238631064 is 460136832.

238631064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 196122 + ... + 197334.

It is an arithmetic number, because the mean of its divisors is an integer number (10671060).

Almost surely, 2^238631064 is an apocalyptic number.

238631064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

238631064 is an abundant number, since it is smaller than the sum of its proper divisors (444316776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238631064 is a wasteful number, since it uses less digits than its factorization.

238631064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 238631064 is about 15447.6879823487. The cubic root of 238631064 is about 620.2626913192.

Adding to 238631064 its reverse (460136832), we get a palindrome (698767896).

The spelling of 238631064 in words is "two hundred thirty-eight million, six hundred thirty-one thousand, sixty-four".