238471641 has 16 divisors (see below), whose sum is σ = 371886400. Its totient is φ = 150613344.

The previous prime is 238471627. The next prime is 238471643. The reversal of 238471641 is 146174832.

238471641 is a `hidden beast` number, since 2 + 3 + 8 + 4 + 7 + 1 + 641 = 666.

It is not a de Polignac number, because 238471641 - 2¹⁸ = 238209497 is a prime.

It is a super-2 number, since 2×238471641² = 113737447122465762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238471596 and 238471605.

It is not an unprimeable number, because it can be changed into a prime (238471643) 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, 231916 + ... + 232941.

It is an arithmetic number, because the mean of its divisors is an integer number (23242900).

Almost surely, 2^238471641 is an apocalyptic number.

It is an amenable number.

238471641 is a deficient number, since it is larger than the sum of its proper divisors (133414759).

238471641 is a wasteful number, since it uses less digits than its factorization.

238471641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464885 (or 464879 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 238471641 is about 15442.5270276597. The cubic root of 238471641 is about 620.1245336039.

The spelling of 238471641 in words is "two hundred thirty-eight million, four hundred seventy-one thousand, six hundred forty-one".