430398649 has 2 divisors, whose sum is σ = 430398650. Its totient is φ = 430398648.

The previous prime is 430398641. The next prime is 430398679. The reversal of 430398649 is 946893034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375119424 + 55279225 = 19368^2 + 7435^2 .

It is a cyclic number.

It is not a de Polignac number, because 430398649 - 2³ = 430398641 is a prime.

It is a super-2 number, since 2×430398649² = 370485994122050402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 430398599 and 430398608.

It is not a weakly prime, because it can be changed into another prime (430398641) 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 as a sum of consecutive naturals, namely, 215199324 + 215199325.

It is an arithmetic number, because the mean of its divisors is an integer number (215199325).

Almost surely, 2^430398649 is an apocalyptic number.

It is an amenable number.

430398649 is a deficient number, since it is larger than the sum of its proper divisors (1).

430398649 is an equidigital number, since it uses as much as digits as its factorization.

430398649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 46.

The square root of 430398649 is about 20746.0514074365. The cubic root of 430398649 is about 755.0174105308.

The spelling of 430398649 in words is "four hundred thirty million, three hundred ninety-eight thousand, six hundred forty-nine".