431213244 has 96 divisors (see below), whose sum is σ = 1288444416. Its totient is φ = 108967680.

The previous prime is 431213221. The next prime is 431213329. The reversal of 431213244 is 442312134.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27882 + ... + 40494.

It is an arithmetic number, because the mean of its divisors is an integer number (13421296).

Almost surely, 2^431213244 is an apocalyptic number.

431213244 is a gapful number since it is divisible by the number (44) 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 431213244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644222208).

431213244 is an abundant number, since it is smaller than the sum of its proper divisors (857231172).

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

431213244 is a wasteful number, since it uses less digits than its factorization.

431213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675 (or 12673 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 431213244 is about 20765.6746579542. The cubic root of 431213244 is about 755.4934388219.

Adding to 431213244 its reverse (442312134), we get a palindrome (873525378).

The spelling of 431213244 in words is "four hundred thirty-one million, two hundred thirteen thousand, two hundred forty-four".