429039385 has 4 divisors (see below), whose sum is σ = 514847268. Its totient is φ = 343231504.

The previous prime is 429039379. The next prime is 429039409. The reversal of 429039385 is 583930924.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149915536 + 279123849 = 12244^2 + 16707^2 .

It is a cyclic number.

It is not a de Polignac number, because 429039385 - 2⁹ = 429038873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42903934 + ... + 42903943.

It is an arithmetic number, because the mean of its divisors is an integer number (128711817).

Almost surely, 2^429039385 is an apocalyptic number.

It is an amenable number.

429039385 is a deficient number, since it is larger than the sum of its proper divisors (85807883).

429039385 is an equidigital number, since it uses as much as digits as its factorization.

429039385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85807882.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 429039385 is about 20713.2659182467. The cubic root of 429039385 is about 754.2217526314.

The spelling of 429039385 in words is "four hundred twenty-nine million, thirty-nine thousand, three hundred eighty-five".