238901969 has 8 divisors (see below), whose sum is σ = 253277928. Its totient is φ = 224561920.

The previous prime is 238901959. The next prime is 238901977. The reversal of 238901969 is 969109832.

It can be written as a sum of positive squares in 4 ways, for example, as 508369 + 238393600 = 713^2 + 15440^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238901969 is a prime.

It is a super-2 number, since 2×238901969² = 114148301584153922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (238901959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5399 + ... + 22515.

It is an arithmetic number, because the mean of its divisors is an integer number (31659741).

Almost surely, 2^238901969 is an apocalyptic number.

It is an amenable number.

238901969 is a deficient number, since it is larger than the sum of its proper divisors (14375959).

238901969 is a wasteful number, since it uses less digits than its factorization.

238901969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17955.

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

The square root of 238901969 is about 15456.4539594307. The cubic root of 238901969 is about 620.4973195017.

The spelling of 238901969 in words is "two hundred thirty-eight million, nine hundred one thousand, nine hundred sixty-nine".