238336146 has 24 divisors (see below), whose sum is σ = 518414364. Its totient is φ = 79134720.

The previous prime is 238336117. The next prime is 238336159. The reversal of 238336146 is 641633832.

238336146 is a `hidden beast` number, since 2 + 3 + 8 + 33 + 614 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 237498921 + 837225 = 15411^2 + 915^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 238336146.

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 11 ways as a sum of consecutive naturals, for example, 21135 + ... + 30386.

Almost surely, 2^238336146 is an apocalyptic number.

238336146 is an abundant number, since it is smaller than the sum of its proper divisors (280078218).

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

238336146 is a wasteful number, since it uses less digits than its factorization.

238336146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51786 (or 51783 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 238336146 is about 15438.1393308909. The cubic root of 238336146 is about 620.0070637419.

Adding to 238336146 its reverse (641633832), we get a palindrome (879969978).

The spelling of 238336146 in words is "two hundred thirty-eight million, three hundred thirty-six thousand, one hundred forty-six".