238028385 has 32 divisors (see below), whose sum is σ = 449298432. Its totient is φ = 105301440.

The previous prime is 238028377. The next prime is 238028393. The reversal of 238028385 is 583820832.

It is an interprime number because it is at equal distance from previous prime (238028377) and next prime (238028393).

It is not a de Polignac number, because 238028385 - 2³ = 238028377 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33309 + ... + 39818.

It is an arithmetic number, because the mean of its divisors is an integer number (14040576).

Almost surely, 2^238028385 is an apocalyptic number.

It is an amenable number.

238028385 is a deficient number, since it is larger than the sum of its proper divisors (211270047).

238028385 is a wasteful number, since it uses less digits than its factorization.

238028385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73173.

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 238028385 is about 15428.1685562480. The cubic root of 238028385 is about 619.7400792214.

The spelling of 238028385 in words is "two hundred thirty-eight million, twenty-eight thousand, three hundred eighty-five".