238384081 has 16 divisors (see below), whose sum is σ = 279178704. Its totient is φ = 201498624.

The previous prime is 238384073. The next prime is 238384099. The reversal of 238384081 is 180483832.

It can be written as a sum of positive squares in 8 ways, for example, as 5363856 + 233020225 = 2316^2 + 15265^2 .

It is a cyclic number.

It is not a de Polignac number, because 238384081 - 2³ = 238384073 is a prime.

It is a super-2 number, since 2×238384081² = 113653940148429122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238384081.

It is not an unprimeable number, because it can be changed into a prime (238384021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6400 + ... + 22753.

It is an arithmetic number, because the mean of its divisors is an integer number (17448669).

Almost surely, 2^238384081 is an apocalyptic number.

It is an amenable number.

238384081 is a deficient number, since it is larger than the sum of its proper divisors (40794623).

238384081 is a wasteful number, since it uses less digits than its factorization.

238384081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29220.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 238384081 is about 15439.6917391508. The cubic root of 238384081 is about 620.0486269526.

The spelling of 238384081 in words is "two hundred thirty-eight million, three hundred eighty-four thousand, eighty-one".