6401800 has 24 divisors (see below), whose sum is σ = 14884650. Its totient is φ = 2560640.

The previous prime is 6401771. The next prime is 6401827. The reversal of 6401800 is 81046.

6401800 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2377764 + 4024036 = 1542^2 + 2006^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15805 + ... + 16204.

Almost surely, 2^6401800 is an apocalyptic number.

It is an amenable number.

6401800 is an abundant number, since it is smaller than the sum of its proper divisors (8482850).

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

6401800 is a wasteful number, since it uses less digits than its factorization.

6401800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32025 (or 32016 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 6401800 is about 2530.1778593609. The cubic root of 6401800 is about 185.6809576711.

Adding to 6401800 its reverse (81046), we get a palindrome (6482846).

The spelling of 6401800 in words is "six million, four hundred one thousand, eight hundred".