431404420412 has 24 divisors (see below), whose sum is σ = 864008893440. Its totient is φ = 184630454640.

The previous prime is 431404420399. The next prime is 431404420427. The reversal of 431404420412 is 214024404134.

It is a super-2 number, since 2×431404420412² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10694264 + ... + 10734527.

It is an arithmetic number, because the mean of its divisors is an integer number (36000370560).

Almost surely, 2^431404420412 is an apocalyptic number.

It is an amenable number.

431404420412 is an abundant number, since it is smaller than the sum of its proper divisors (432604473028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431404420412 is a wasteful number, since it uses less digits than its factorization.

431404420412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21429521 (or 21429519 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 431404420412 its reverse (214024404134), we get a palindrome (645428824546).

The spelling of 431404420412 in words is "four hundred thirty-one billion, four hundred four million, four hundred twenty thousand, four hundred twelve".