431433423420 has 24 divisors (see below), whose sum is σ = 1208013585744. Its totient is φ = 115048912896.

The previous prime is 431433423401. The next prime is 431433423503. The reversal of 431433423420 is 24324334134.

It is a happy number.

It is a super-2 number, since 2×431433423420² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 3595278469 + ... + 3595278588.

It is an arithmetic number, because the mean of its divisors is an integer number (50333899406).

Almost surely, 2^431433423420 is an apocalyptic number.

It is an amenable number.

431433423420 is an abundant number, since it is smaller than the sum of its proper divisors (776580162324).

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

431433423420 is a wasteful number, since it uses less digits than its factorization.

431433423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7190557069 (or 7190557067 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 431433423420 its reverse (24324334134), we get a palindrome (455757757554).

The spelling of 431433423420 in words is "four hundred thirty-one billion, four hundred thirty-three million, four hundred twenty-three thousand, four hundred twenty".