238225978 has 8 divisors (see below), whose sum is σ = 357406272. Its totient is φ = 119090556.

The previous prime is 238225961. The next prime is 238225987. The reversal of 238225978 is 879522832.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10351 + ... + 24157.

It is an arithmetic number, because the mean of its divisors is an integer number (44675784).

Almost surely, 2^238225978 is an apocalyptic number.

238225978 is a deficient number, since it is larger than the sum of its proper divisors (119180294).

238225978 is a wasteful number, since it uses less digits than its factorization.

238225978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22436.

The product of its digits is 483840, while the sum is 46.

The square root of 238225978 is about 15434.5708719096. The cubic root of 238225978 is about 619.9115187642.

The spelling of 238225978 in words is "two hundred thirty-eight million, two hundred twenty-five thousand, nine hundred seventy-eight".