421340305435 has 16 divisors (see below), whose sum is σ = 581178246336. Its totient is φ = 287249010048.

The previous prime is 421340305411. The next prime is 421340305439. The reversal of 421340305435 is 534503043124.

It is a happy number.

It is not a de Polignac number, because 421340305435 - 2²³ = 421331916827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421340305435.

It is not an unprimeable number, because it can be changed into a prime (421340305439) 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 in 15 ways as a sum of consecutive naturals, for example, 34786704 + ... + 34798813.

It is an arithmetic number, because the mean of its divisors is an integer number (36323640396).

Almost surely, 2^421340305435 is an apocalyptic number.

421340305435 is a deficient number, since it is larger than the sum of its proper divisors (159837940901).

421340305435 is a wasteful number, since it uses less digits than its factorization.

421340305435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69585702.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 421340305435 its reverse (534503043124), we get a palindrome (955843348559).

The spelling of 421340305435 in words is "four hundred twenty-one billion, three hundred forty million, three hundred five thousand, four hundred thirty-five".