6420343350 has 192 divisors, whose sum is σ = 17381744640. Its totient is φ = 1564147200.

The previous prime is 6420343313. The next prime is 6420343427. The reversal of 6420343350 is 533430246.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6337444 + ... + 6338456.

It is an arithmetic number, because the mean of its divisors is an integer number (90529920).

Almost surely, 2^6420343350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6420343350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8690872320).

6420343350 is an abundant number, since it is smaller than the sum of its proper divisors (10961401290).

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

6420343350 is a wasteful number, since it uses less digits than its factorization.

6420343350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

The square root of 6420343350 is about 80127.0450597050. The cubic root of 6420343350 is about 1858.6006499878.

Adding to 6420343350 its reverse (533430246), we get a palindrome (6953773596).

The spelling of 6420343350 in words is "six billion, four hundred twenty million, three hundred forty-three thousand, three hundred fifty".