238949247 has 16 divisors (see below), whose sum is σ = 323917920. Its totient is φ = 156659712.

The previous prime is 238949159. The next prime is 238949251. The reversal of 238949247 is 742949832.

It is not a de Polignac number, because 238949247 - 2⁷ = 238949119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238949196 and 238949205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238949257) 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, 49213 + ... + 53849.

It is an arithmetic number, because the mean of its divisors is an integer number (20244870).

Almost surely, 2^238949247 is an apocalyptic number.

238949247 is a deficient number, since it is larger than the sum of its proper divisors (84968673).

238949247 is a wasteful number, since it uses less digits than its factorization.

238949247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4922.

The product of its digits is 870912, while the sum is 48.

The square root of 238949247 is about 15457.9832772584. The cubic root of 238949247 is about 620.5382483360.

The spelling of 238949247 in words is "two hundred thirty-eight million, nine hundred forty-nine thousand, two hundred forty-seven".