238220132 has 18 divisors (see below), whose sum is σ = 419063778. Its totient is φ = 118490752.

The previous prime is 238220113. The next prime is 238220179. The reversal of 238220132 is 231022832.

It can be written as a sum of positive squares in 3 ways, for example, as 320356 + 237899776 = 566^2 + 15424^2 .

It is a junction number, because it is equal to n+sod(n) for n = 238220098 and 238220107.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216608 + ... + 217704.

It is an arithmetic number, because the mean of its divisors is an integer number (23281321).

Almost surely, 2^238220132 is an apocalyptic number.

It is an amenable number.

238220132 is a deficient number, since it is larger than the sum of its proper divisors (180843646).

238220132 is a wasteful number, since it uses less digits than its factorization.

238220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1332 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 238220132 is about 15434.3814906850. The cubic root of 238220132 is about 619.9064479033.

Adding to 238220132 its reverse (231022832), we get a palindrome (469242964).

The spelling of 238220132 in words is "two hundred thirty-eight million, two hundred twenty thousand, one hundred thirty-two".