238744129 has 8 divisors (see below), whose sum is σ = 257346432. Its totient is φ = 220175760.

The previous prime is 238744111. The next prime is 238744147. The reversal of 238744129 is 921447832.

238744129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (238744111) and next prime (238744147).

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

It is a cyclic number.

It is not a de Polignac number, because 238744129 - 2⁷ = 238744001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 238744091 and 238744100.

It is not an unprimeable number, because it can be changed into a prime (238744169) 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, 7224 + ... + 23014.

It is an arithmetic number, because the mean of its divisors is an integer number (32168304).

Almost surely, 2^238744129 is an apocalyptic number.

It is an amenable number.

238744129 is a deficient number, since it is larger than the sum of its proper divisors (18602303).

238744129 is a wasteful number, since it uses less digits than its factorization.

238744129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16967.

The product of its digits is 96768, while the sum is 40.

The square root of 238744129 is about 15451.3471580960. The cubic root of 238744129 is about 620.3606373940.

The spelling of 238744129 in words is "two hundred thirty-eight million, seven hundred forty-four thousand, one hundred twenty-nine".