238249385 has 16 divisors (see below), whose sum is σ = 315843840. Its totient is φ = 171075840.

The previous prime is 238249357. The next prime is 238249391. The reversal of 238249385 is 583942832.

It is not a de Polignac number, because 238249385 - 2⁸ = 238249129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23072 + ... + 31761.

It is an arithmetic number, because the mean of its divisors is an integer number (19740240).

Almost surely, 2^238249385 is an apocalyptic number.

It is an amenable number.

238249385 is a deficient number, since it is larger than the sum of its proper divisors (77594455).

238249385 is a wasteful number, since it uses less digits than its factorization.

238249385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54928.

The product of its digits is 414720, while the sum is 44.

The square root of 238249385 is about 15435.3291186162. The cubic root of 238249385 is about 619.9318213271.

The spelling of 238249385 in words is "two hundred thirty-eight million, two hundred forty-nine thousand, three hundred eighty-five".