238250395881 has 9 divisors (see below), whose sum is σ = 344141575869. Its totient is φ = 158832621036.

The previous prime is 238250395853. The next prime is 238250395921. The reversal of 238250395881 is 188593052832.

The square root of 238250395881 is 488109.

It is a perfect power (a square), and thus also a powerful number.

238250395881 is a `hidden beast` number, since 2 + 3 + 8 + 2 + 50 + 3 + 9 + 588 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 238250395881 - 2⁷ = 238250395753 is a prime.

It is a super-2 number, since 2×238250395881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238250325881) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1382976 + ... + 1545678.

Almost surely, 2^238250395881 is an apocalyptic number.

238250395881 is the 488109-th square number.

238250395881 is the 244055-th centered octagonal number.

It is an amenable number.

238250395881 is a deficient number, since it is larger than the sum of its proper divisors (105891179988).

238250395881 is an frugal number, since it uses more digits than its factorization.

238250395881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325412 (or 162706 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 238250395881 in words is "two hundred thirty-eight billion, two hundred fifty million, three hundred ninety-five thousand, eight hundred eighty-one".