238043428146 has 24 divisors (see below), whose sum is σ = 533545615980. Its totient is φ = 76611677856.

The previous prime is 238043428099. The next prime is 238043428157. The reversal of 238043428146 is 641824340832.

It is a happy number.

238043428146 is a `hidden beast` number, since 2 + 3 + 80 + 4 + 3 + 428 + 146 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 233251327521 + 4792100625 = 482961^2 + 69225^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228010425 + ... + 228011468.

Almost surely, 2^238043428146 is an apocalyptic number.

238043428146 is an abundant number, since it is smaller than the sum of its proper divisors (295502187834).

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

238043428146 is a wasteful number, since it uses less digits than its factorization.

238043428146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456021930 (or 456021927 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

Adding to 238043428146 its reverse (641824340832), we get a palindrome (879867768978).

The spelling of 238043428146 in words is "two hundred thirty-eight billion, forty-three million, four hundred twenty-eight thousand, one hundred forty-six".