385738429 has 2 divisors, whose sum is σ = 385738430. Its totient is φ = 385738428.

The previous prime is 385738427. The next prime is 385738453. The reversal of 385738429 is 924837583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 373648900 + 12089529 = 19330^2 + 3477^2 .

It is a cyclic number.

It is not a de Polignac number, because 385738429 - 2¹ = 385738427 is a prime.

Together with 385738427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385738421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192869214 + 192869215.

It is an arithmetic number, because the mean of its divisors is an integer number (192869215).

Almost surely, 2^385738429 is an apocalyptic number.

It is an amenable number.

385738429 is a deficient number, since it is larger than the sum of its proper divisors (1).

385738429 is an equidigital number, since it uses as much as digits as its factorization.

385738429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 49.

The square root of 385738429 is about 19640.2247695896. The cubic root of 385738429 is about 727.9434385523.

The spelling of 385738429 in words is "three hundred eighty-five million, seven hundred thirty-eight thousand, four hundred twenty-nine".