238916065 has 32 divisors (see below), whose sum is σ = 314150400. Its totient is φ = 173859840.

The previous prime is 238916063. The next prime is 238916129. The reversal of 238916065 is 560619832.

It is not a de Polignac number, because 238916065 - 2¹ = 238916063 is a prime.

It is a super-2 number, since 2×238916065² = 114161772230168450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238916063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236281 + ... + 237289.

It is an arithmetic number, because the mean of its divisors is an integer number (9817200).

Almost surely, 2^238916065 is an apocalyptic number.

It is an amenable number.

238916065 is a deficient number, since it is larger than the sum of its proper divisors (75234335).

238916065 is a wasteful number, since it uses less digits than its factorization.

238916065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 238916065 is about 15456.9099434525. The cubic root of 238916065 is about 620.5095230542.

The spelling of 238916065 in words is "two hundred thirty-eight million, nine hundred sixteen thousand, sixty-five".