4331221340 has 48 divisors (see below), whose sum is σ = 9418762080. Its totient is φ = 1671048960.

The previous prime is 4331221313. The next prime is 4331221343. The reversal of 4331221340 is 431221334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4331221343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671330 + ... + 677750.

It is an arithmetic number, because the mean of its divisors is an integer number (196224210).

Almost surely, 2^4331221340 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 4331221340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4709381040).

4331221340 is an abundant number, since it is smaller than the sum of its proper divisors (5087540740).

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

4331221340 is a wasteful number, since it uses less digits than its factorization.

4331221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7622 (or 7620 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 4331221340 is about 65812.0151644060. The cubic root of 4331221340 is about 1630.0595082845.

Adding to 4331221340 its reverse (431221334), we get a palindrome (4762442674).

The spelling of 4331221340 in words is "four billion, three hundred thirty-one million, two hundred twenty-one thousand, three hundred forty".