421431414434 has 16 divisors (see below), whose sum is σ = 670263206400. Its totient is φ = 198044825664.

The previous prime is 421431414427. The next prime is 421431414463. The reversal of 421431414434 is 434414134124.

It is a junction number, because it is equal to n+sod(n) for n = 421431414394 and 421431414403.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8595194 + ... + 8644085.

It is an arithmetic number, because the mean of its divisors is an integer number (41891450400).

Almost surely, 2^421431414434 is an apocalyptic number.

421431414434 is a deficient number, since it is larger than the sum of its proper divisors (248831791966).

421431414434 is a wasteful number, since it uses less digits than its factorization.

421431414434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17240017.

The product of its digits is 73728, while the sum is 35.

Adding to 421431414434 its reverse (434414134124), we get a palindrome (855845548558).

The spelling of 421431414434 in words is "four hundred twenty-one billion, four hundred thirty-one million, four hundred fourteen thousand, four hundred thirty-four".