429640319 has 2 divisors, whose sum is σ = 429640320. Its totient is φ = 429640318.

The previous prime is 429640297. The next prime is 429640327. The reversal of 429640319 is 913046924.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-429640319 is a prime.

It is a super-2 number, since 2×429640319² = 369181607420843522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (429640339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214820159 + 214820160.

It is an arithmetic number, because the mean of its divisors is an integer number (214820160).

Almost surely, 2^429640319 is an apocalyptic number.

429640319 is a deficient number, since it is larger than the sum of its proper divisors (1).

429640319 is an equidigital number, since it uses as much as digits as its factorization.

429640319 is an odious number, because the sum of its binary digits is odd.

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

The square root of 429640319 is about 20727.7668599394. The cubic root of 429640319 is about 754.5737219113.

The spelling of 429640319 in words is "four hundred twenty-nine million, six hundred forty thousand, three hundred nineteen".