385662429 has 6 divisors (see below), whose sum is σ = 557067966. Its totient is φ = 257108280.

The previous prime is 385662427. The next prime is 385662439. The reversal of 385662429 is 924266583.

It can be written as a sum of positive squares in only one way, i.e., 221950404 + 163712025 = 14898^2 + 12795^2 .

It is not a de Polignac number, because 385662429 - 2¹ = 385662427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385662421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21425682 + ... + 21425699.

It is an arithmetic number, because the mean of its divisors is an integer number (92844661).

Almost surely, 2^385662429 is an apocalyptic number.

It is an amenable number.

385662429 is a deficient number, since it is larger than the sum of its proper divisors (171405537).

385662429 is a wasteful number, since it uses less digits than its factorization.

385662429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42851387 (or 42851384 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 385662429 is about 19638.2898695380. The cubic root of 385662429 is about 727.8956277986.

The spelling of 385662429 in words is "three hundred eighty-five million, six hundred sixty-two thousand, four hundred twenty-nine".