6403343500 has 48 divisors (see below), whose sum is σ = 14016955680. Its totient is φ = 2555467200.

The previous prime is 6403343491. The next prime is 6403343509. The reversal of 6403343500 is 53433046.

It is an interprime number because it is at equal distance from previous prime (6403343491) and next prime (6403343509).

It is not an unprimeable number, because it can be changed into a prime (6403343509) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 207046 + ... + 235954.

It is an arithmetic number, because the mean of its divisors is an integer number (292019910).

Almost surely, 2^6403343500 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 6403343500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7008477840).

6403343500 is an abundant number, since it is smaller than the sum of its proper divisors (7613612180).

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

6403343500 is a wasteful number, since it uses less digits than its factorization.

6403343500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29371 (or 29359 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 6403343500 is about 80020.8941464665. The cubic root of 6403343500 is about 1856.9587928312.

Adding to 6403343500 its reverse (53433046), we get a palindrome (6456776546).

The spelling of 6403343500 in words is "six billion, four hundred three million, three hundred forty-three thousand, five hundred".