238647441 has 4 divisors (see below), whose sum is σ = 318196592. Its totient is φ = 159098292.

The previous prime is 238647407. The next prime is 238647443. The reversal of 238647441 is 144746832.

238647441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 238647441 - 2⁷ = 238647313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238647441.

It is not an unprimeable number, because it can be changed into a prime (238647443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39774571 + ... + 39774576.

It is an arithmetic number, because the mean of its divisors is an integer number (79549148).

Almost surely, 2^238647441 is an apocalyptic number.

It is an amenable number.

238647441 is a deficient number, since it is larger than the sum of its proper divisors (79549151).

238647441 is an equidigital number, since it uses as much as digits as its factorization.

238647441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79549150.

The product of its digits is 129024, while the sum is 39.

The square root of 238647441 is about 15448.2180525781. The cubic root of 238647441 is about 620.2768803210.

The spelling of 238647441 in words is "two hundred thirty-eight million, six hundred forty-seven thousand, four hundred forty-one".