430869449 has 2 divisors, whose sum is σ = 430869450. Its totient is φ = 430869448.

The previous prime is 430869391. The next prime is 430869457. The reversal of 430869449 is 944968034.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238548025 + 192321424 = 15445^2 + 13868^2 .

It is a cyclic number.

It is not a de Polignac number, because 430869449 - 2²⁰ = 429820873 is a prime.

It is not a weakly prime, because it can be changed into another prime (430869469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215434724 + 215434725.

It is an arithmetic number, because the mean of its divisors is an integer number (215434725).

Almost surely, 2^430869449 is an apocalyptic number.

It is an amenable number.

430869449 is a deficient number, since it is larger than the sum of its proper divisors (1).

430869449 is an equidigital number, since it uses as much as digits as its factorization.

430869449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The square root of 430869449 is about 20757.3950436947. The cubic root of 430869449 is about 755.2926070775.

The spelling of 430869449 in words is "four hundred thirty million, eight hundred sixty-nine thousand, four hundred forty-nine".