430420661 has 24 divisors (see below), whose sum is σ = 500688864. Its totient is φ = 366870240.

The previous prime is 430420657. The next prime is 430420693. The reversal of 430420661 is 166024034.

It is not a de Polignac number, because 430420661 - 2² = 430420657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 430420661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430420631) 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 23 ways as a sum of consecutive naturals, for example, 424391 + ... + 425403.

It is an arithmetic number, because the mean of its divisors is an integer number (20862036).

Almost surely, 2^430420661 is an apocalyptic number.

It is an amenable number.

430420661 is a deficient number, since it is larger than the sum of its proper divisors (70268203).

430420661 is a wasteful number, since it uses less digits than its factorization.

430420661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1150 counting only the distinct ones).

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

The square root of 430420661 is about 20746.5819112450. The cubic root of 430420661 is about 755.0302816678.

Adding to 430420661 its reverse (166024034), we get a palindrome (596444695).

The spelling of 430420661 in words is "four hundred thirty million, four hundred twenty thousand, six hundred sixty-one".