238153648 has 20 divisors (see below), whose sum is σ = 463747600. Its totient is φ = 118476864.

The previous prime is 238153633. The next prime is 238153649. The reversal of 238153648 is 846351832.

It is a self number, because there is not a number n which added to its sum of digits gives 238153648.

It is not an unprimeable number, because it can be changed into a prime (238153649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34215 + ... + 40582.

It is an arithmetic number, because the mean of its divisors is an integer number (23187380).

Almost surely, 2^238153648 is an apocalyptic number.

It is an amenable number.

238153648 is a deficient number, since it is larger than the sum of its proper divisors (225593952).

238153648 is a wasteful number, since it uses less digits than its factorization.

238153648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75004 (or 74998 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 238153648 is about 15432.2275773785. The cubic root of 238153648 is about 619.8487733838.

The spelling of 238153648 in words is "two hundred thirty-eight million, one hundred fifty-three thousand, six hundred forty-eight".