238328901 has 6 divisors (see below), whose sum is σ = 344252870. Its totient is φ = 158885928.

The previous prime is 238328897. The next prime is 238328929. The reversal of 238328901 is 109823832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 207792225 + 30536676 = 14415^2 + 5526^2 .

It is not a de Polignac number, because 238328901 - 2² = 238328897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238328401) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 13240486 + ... + 13240503.

Almost surely, 2^238328901 is an apocalyptic number.

It is an amenable number.

238328901 is a deficient number, since it is larger than the sum of its proper divisors (105923969).

238328901 is a wasteful number, since it uses less digits than its factorization.

238328901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480995 (or 26480992 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 238328901 is about 15437.9046829549. The cubic root of 238328901 is about 620.0007813032. Note that the first 3 decimals are identical.

The spelling of 238328901 in words is "two hundred thirty-eight million, three hundred twenty-eight thousand, nine hundred one".