238996901 has 12 divisors (see below), whose sum is σ = 282908556. Its totient is φ = 200555520.

The previous prime is 238996889. The next prime is 238996903. The reversal of 238996901 is 109699832.

It can be written as a sum of positive squares in 2 ways, for example, as 31348801 + 207648100 = 5599^2 + 14410^2 .

It is a de Polignac number, because none of the positive numbers 2^k-238996901 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 (238996903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74396 + ... + 77541.

It is an arithmetic number, because the mean of its divisors is an integer number (23575713).

Almost surely, 2^238996901 is an apocalyptic number.

It is an amenable number.

238996901 is a deficient number, since it is larger than the sum of its proper divisors (43911655).

238996901 is a wasteful number, since it uses less digits than its factorization.

238996901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151972 (or 151961 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 238996901 is about 15459.5246045925. The cubic root of 238996901 is about 620.5794972127.

The spelling of 238996901 in words is "two hundred thirty-eight million, nine hundred ninety-six thousand, nine hundred one".