6420606200 has 48 divisors (see below), whose sum is σ = 14960366880. Its totient is φ = 2562658560.

The previous prime is 6420606187. The next prime is 6420606209. The reversal of 6420606200 is 26060246.

It is a self number, because there is not a number n which added to its sum of digits gives 6420606200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6420606209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57932 + ... + 127268.

It is an arithmetic number, because the mean of its divisors is an integer number (311674310).

Almost surely, 2^6420606200 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 6420606200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7480183440).

6420606200 is an abundant number, since it is smaller than the sum of its proper divisors (8539760680).

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

6420606200 is a wasteful number, since it uses less digits than its factorization.

6420606200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69816 (or 69807 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 6420606200 is about 80128.6852506641. The cubic root of 6420606200 is about 1858.6260134555.

Adding to 6420606200 its reverse (26060246), we get a palindrome (6446666446).

The spelling of 6420606200 in words is "six billion, four hundred twenty million, six hundred six thousand, two hundred".