238908320 has 144 divisors (see below), whose sum is σ = 678440448. Its totient is φ = 79188480.

The previous prime is 238908281. The next prime is 238908323. The reversal of 238908320 is 23809832.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (238908323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242549 + ... + 243531.

It is an arithmetic number, because the mean of its divisors is an integer number (4711392).

Almost surely, 2^238908320 is an apocalyptic number.

238908320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238908320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339220224).

238908320 is an abundant number, since it is smaller than the sum of its proper divisors (439532128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238908320 is a wasteful number, since it uses less digits than its factorization.

238908320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 238908320 is about 15456.6594062236. The cubic root of 238908320 is about 620.5028179126.

The spelling of 238908320 in words is "two hundred thirty-eight million, nine hundred eight thousand, three hundred twenty".