431434210420 has 24 divisors (see below), whose sum is σ = 928109693448. Its totient is φ = 168364569600.

The previous prime is 431434210393. The next prime is 431434210429. The reversal of 431434210420 is 24012434134.

It can be written as a sum of positive squares in 4 ways, for example, as 18275795344 + 413158415076 = 135188^2 + 642774^2 .

It is a super-2 number, since 2×431434210420² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431434210429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263068821 + ... + 263070460.

It is an arithmetic number, because the mean of its divisors is an integer number (38671237227).

Almost surely, 2^431434210420 is an apocalyptic number.

It is an amenable number.

431434210420 is an abundant number, since it is smaller than the sum of its proper divisors (496675483028).

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

431434210420 is a wasteful number, since it uses less digits than its factorization.

431434210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526139331 (or 526139329 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 431434210420 its reverse (24012434134), we get a palindrome (455446644554).

The spelling of 431434210420 in words is "four hundred thirty-one billion, four hundred thirty-four million, two hundred ten thousand, four hundred twenty".