238392029 has 2 divisors, whose sum is σ = 238392030. Its totient is φ = 238392028.

The previous prime is 238391971. The next prime is 238392053. The reversal of 238392029 is 920293832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156000100 + 82391929 = 12490^2 + 9077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238392029 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 238391983 and 238392001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238392229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119196014 + 119196015.

It is an arithmetic number, because the mean of its divisors is an integer number (119196015).

Almost surely, 2^238392029 is an apocalyptic number.

It is an amenable number.

238392029 is a deficient number, since it is larger than the sum of its proper divisors (1).

238392029 is an equidigital number, since it uses as much as digits as its factorization.

238392029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 238392029 is about 15439.9491255639. The cubic root of 238392029 is about 620.0555179213.

The spelling of 238392029 in words is "two hundred thirty-eight million, three hundred ninety-two thousand, twenty-nine".