431022340 has 96 divisors (see below), whose sum is σ = 1077931008. Its totient is φ = 141696000.

The previous prime is 431022337. The next prime is 431022343. The reversal of 431022340 is 43220134.

It is an interprime number because it is at equal distance from previous prime (431022337) and next prime (431022343).

It is not an unprimeable number, because it can be changed into a prime (431022343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349525 + ... + 350755.

It is an arithmetic number, because the mean of its divisors is an integer number (11228448).

Almost surely, 2^431022340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431022340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538965504).

431022340 is an abundant number, since it is smaller than the sum of its proper divisors (646908668).

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

431022340 is a wasteful number, since it uses less digits than its factorization.

431022340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1347 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 431022340 is about 20761.0775250226. The cubic root of 431022340 is about 755.3819332730.

Adding to 431022340 its reverse (43220134), we get a palindrome (474242474).

The spelling of 431022340 in words is "four hundred thirty-one million, twenty-two thousand, three hundred forty".