430402409 has 4 divisors (see below), whose sum is σ = 431374416. Its totient is φ = 429430404.

The previous prime is 430402403. The next prime is 430402429. The reversal of 430402409 is 904204034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 430402409 - 2²⁰ = 429353833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (430402403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485339 + ... + 486224.

It is an arithmetic number, because the mean of its divisors is an integer number (107843604).

Almost surely, 2^430402409 is an apocalyptic number.

It is an amenable number.

430402409 is a deficient number, since it is larger than the sum of its proper divisors (972007).

430402409 is an equidigital number, since it uses as much as digits as its factorization.

430402409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972006.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 430402409 is about 20746.1420268926. The cubic root of 430402409 is about 755.0196091569.

The spelling of 430402409 in words is "four hundred thirty million, four hundred two thousand, four hundred nine".