238164043 has 4 divisors (see below), whose sum is σ = 256484368. Its totient is φ = 219843720.

The previous prime is 238164023. The next prime is 238164077. The reversal of 238164043 is 340461832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 238164043 - 2⁹ = 238163531 is a prime.

It is a super-2 number, since 2×238164043² = 113444222756211698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238163996 and 238164014.

It is not an unprimeable number, because it can be changed into a prime (238164013) 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, 9160143 + ... + 9160168.

It is an arithmetic number, because the mean of its divisors is an integer number (64121092).

Almost surely, 2^238164043 is an apocalyptic number.

238164043 is a deficient number, since it is larger than the sum of its proper divisors (18320325).

238164043 is a wasteful number, since it uses less digits than its factorization.

238164043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18320324.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 238164043 is about 15432.5643688922. The cubic root of 238164043 is about 619.8577916994.

The spelling of 238164043 in words is "two hundred thirty-eight million, one hundred sixty-four thousand, forty-three".