238741965 has 192 divisors, whose sum is σ = 573246720. Its totient is φ = 92897280.

The previous prime is 238741961. The next prime is 238741969. The reversal of 238741965 is 569147832.

It is an interprime number because it is at equal distance from previous prime (238741961) and next prime (238741969).

It is not a de Polignac number, because 238741965 - 2² = 238741961 is a prime.

It is a super-2 number, since 2×238741965² = 113995451704122450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 238741965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238741961) 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 191 ways as a sum of consecutive naturals, for example, 1236909 + ... + 1237101.

It is an arithmetic number, because the mean of its divisors is an integer number (2985660).

Almost surely, 2^238741965 is an apocalyptic number.

It is an amenable number.

238741965 is an abundant number, since it is smaller than the sum of its proper divisors (334504755).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238741965 is a wasteful number, since it uses less digits than its factorization.

238741965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 236 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 238741965 is about 15451.2771316807. The cubic root of 238741965 is about 620.3587630519.

The spelling of 238741965 in words is "two hundred thirty-eight million, seven hundred forty-one thousand, nine hundred sixty-five".