238740747 has 8 divisors (see below), whose sum is σ = 363795456. Its totient is φ = 136423272.

The previous prime is 238740739. The next prime is 238740767. The reversal of 238740747 is 747047832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 238740747 - 2³ = 238740739 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 238740699 and 238740708.

It is not an unprimeable number, because it can be changed into a prime (238740737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5684283 + ... + 5684324.

It is an arithmetic number, because the mean of its divisors is an integer number (45474432).

Almost surely, 2^238740747 is an apocalyptic number.

238740747 is a deficient number, since it is larger than the sum of its proper divisors (125054709).

238740747 is a wasteful number, since it uses less digits than its factorization.

238740747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11368617.

The product of its (nonzero) digits is 263424, while the sum is 42.

The square root of 238740747 is about 15451.2377174128. The cubic root of 238740747 is about 620.3577080800.

It can be divided in two parts, 2387 and 40747, that added together give a palindrome (43134).

The spelling of 238740747 in words is "two hundred thirty-eight million, seven hundred forty thousand, seven hundred forty-seven".