238133479 has 8 divisors (see below), whose sum is σ = 250871040. Its totient is φ = 225416376.

The previous prime is 238133459. The next prime is 238133491. The reversal of 238133479 is 974331832.

238133479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 238133479 - 2⁹ = 238132967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238133429) 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, 22722 + ... + 31504.

It is an arithmetic number, because the mean of its divisors is an integer number (31358880).

Almost surely, 2^238133479 is an apocalyptic number.

238133479 is a deficient number, since it is larger than the sum of its proper divisors (12737561).

238133479 is a wasteful number, since it uses less digits than its factorization.

238133479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10229.

The product of its digits is 108864, while the sum is 40.

The square root of 238133479 is about 15431.5740933970. The cubic root of 238133479 is about 619.8312747606.

The spelling of 238133479 in words is "two hundred thirty-eight million, one hundred thirty-three thousand, four hundred seventy-nine".