238428441 has 12 divisors (see below), whose sum is σ = 357152432. Its totient is φ = 158952132.

The previous prime is 238428431. The next prime is 238428479. The reversal of 238428441 is 144824832.

It is not a de Polignac number, because 238428441 - 2⁷ = 238428313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238428396 and 238428405.

It is not an unprimeable number, because it can be changed into a prime (238428431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490351 + ... + 490836.

Almost surely, 2^238428441 is an apocalyptic number.

It is an amenable number.

238428441 is a deficient number, since it is larger than the sum of its proper divisors (118723991).

238428441 is an frugal number, since it uses more digits than its factorization.

238428441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981202 (or 981190 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 238428441 is about 15441.1282295045. The cubic root of 238428441 is about 620.0870854087.

The spelling of 238428441 in words is "two hundred thirty-eight million, four hundred twenty-eight thousand, four hundred forty-one".