431320000 has 140 divisors (see below), whose sum is σ = 1099785456. Its totient is φ = 167680000.

The previous prime is 431319997. The next prime is 431320037. The reversal of 431320000 is 23134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1639869 + ... + 1640131.

Almost surely, 2^431320000 is an apocalyptic number.

431320000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549892728).

431320000 is an abundant number, since it is smaller than the sum of its proper divisors (668465456).

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

431320000 is an equidigital number, since it uses as much as digits as its factorization.

431320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 431320000 is about 20768.2449908508. The cubic root of 431320000 is about 755.5557798282. Note that the first 3 decimals are identical.

Adding to 431320000 its reverse (23134), we get a palindrome (431343134).

The spelling of 431320000 in words is "four hundred thirty-one million, three hundred twenty thousand".