421404340034404 has 24 divisors (see below), whose sum is σ = 751700430569088. Its totient is φ = 206636265070560.

The previous prime is 421404340034387. The next prime is 421404340034423. The reversal of 421404340034404 is 404430043404124.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434092402 + ... + 435062089.

It is an arithmetic number, because the mean of its divisors is an integer number (31320851273712).

Almost surely, 2^{421404340034404} is an apocalyptic number.

It is an amenable number.

421404340034404 is a deficient number, since it is larger than the sum of its proper divisors (330296090534684).

421404340034404 is a wasteful number, since it uses less digits than its factorization.

421404340034404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869156835 (or 869156833 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 421404340034404 its reverse (404430043404124), we get a palindrome (825834383438528).

The spelling of 421404340034404 in words is "four hundred twenty-one trillion, four hundred four billion, three hundred forty million, thirty-four thousand, four hundred four".