238663413 has 6 divisors (see below), whose sum is σ = 344736054. Its totient is φ = 159108936.

The previous prime is 238663409. The next prime is 238663423. The reversal of 238663413 is 314366832.

238663413 is a `hidden beast` number, since 2 + 3 + 8 + 6 + 634 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 194267844 + 44395569 = 13938^2 + 6663^2 .

It is not a de Polignac number, because 238663413 - 2² = 238663409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238663423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13259070 + ... + 13259087.

It is an arithmetic number, because the mean of its divisors is an integer number (57456009).

Almost surely, 2^238663413 is an apocalyptic number.

It is an amenable number.

238663413 is a deficient number, since it is larger than the sum of its proper divisors (106072641).

238663413 is a wasteful number, since it uses less digits than its factorization.

238663413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26518163 (or 26518160 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 238663413 is about 15448.7349967562. The cubic root of 238663413 is about 620.2907178062.

The spelling of 238663413 in words is "two hundred thirty-eight million, six hundred sixty-three thousand, four hundred thirteen".