431343020 has 12 divisors (see below), whose sum is σ = 905820384. Its totient is φ = 172537200.

The previous prime is 431342999. The next prime is 431343037. The reversal of 431343020 is 20343134.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 21567151 = 431343020 / (4 + 3 + 1 + 3 + 4 + 3 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 431342983 and 431343001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10783556 + ... + 10783595.

It is an arithmetic number, because the mean of its divisors is an integer number (75485032).

Almost surely, 2^431343020 is an apocalyptic number.

It is an amenable number.

431343020 is an abundant number, since it is smaller than the sum of its proper divisors (474477364).

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

431343020 is a wasteful number, since it uses less digits than its factorization.

431343020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21567160 (or 21567158 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 431343020 is about 20768.7991949462. The cubic root of 431343020 is about 755.5692211901.

Adding to 431343020 its reverse (20343134), we get a palindrome (451686154).

The spelling of 431343020 in words is "four hundred thirty-one million, three hundred forty-three thousand, twenty".