238720272 has 80 divisors (see below), whose sum is σ = 706716672. Its totient is φ = 68019840.

The previous prime is 238720271. The next prime is 238720291. The reversal of 238720272 is 272027832.

It is not an unprimeable number, because it can be changed into a prime (238720271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164253 + ... + 165699.

Almost surely, 2^238720272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238720272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353358336).

238720272 is an abundant number, since it is smaller than the sum of its proper divisors (467996400).

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

238720272 is a wasteful number, since it uses less digits than its factorization.

238720272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 238720272 is about 15450.5751349262. The cubic root of 238720272 is about 620.3399730998.

The spelling of 238720272 in words is "two hundred thirty-eight million, seven hundred twenty thousand, two hundred seventy-two".