238348928 has 16 divisors (see below), whose sum is σ = 474836010. Its totient is φ = 119174400.

The previous prime is 238348927. The next prime is 238348937. The reversal of 238348928 is 829843832.

It can be written as a sum of positive squares in only one way, i.e., 153561664 + 84787264 = 12392^2 + 9208^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×238348928² = 113620422957498368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238348927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 930923 + ... + 931178.

Almost surely, 2^238348928 is an apocalyptic number.

It is an amenable number.

238348928 is a deficient number, since it is larger than the sum of its proper divisors (236487082).

238348928 is an equidigital number, since it uses as much as digits as its factorization.

238348928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862115 (or 1862103 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 238348928 is about 15438.5533000991. The cubic root of 238348928 is about 620.0181472316.

The spelling of 238348928 in words is "two hundred thirty-eight million, three hundred forty-eight thousand, nine hundred twenty-eight".