238290399 has 6 divisors (see below), whose sum is σ = 344197256. Its totient is φ = 158860260.

The previous prime is 238290389. The next prime is 238290421. The reversal of 238290399 is 993092832.

238290399 is a `hidden beast` number, since 238 + 29 + 0 + 399 = 666.

It is not a de Polignac number, because 238290399 - 2⁴ = 238290383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238290359) 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, 13238347 + ... + 13238364.

Almost surely, 2^238290399 is an apocalyptic number.

238290399 is a deficient number, since it is larger than the sum of its proper divisors (105906857).

238290399 is a wasteful number, since it uses less digits than its factorization.

238290399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26476717 (or 26476714 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 238290399 is about 15436.6576369368. The cubic root of 238290399 is about 619.9673924925.

The spelling of 238290399 in words is "two hundred thirty-eight million, two hundred ninety thousand, three hundred ninety-nine".