6463400 has 48 divisors (see below), whose sum is σ = 15919740. Its totient is φ = 2432000.

The previous prime is 6463399. The next prime is 6463421. The reversal of 6463400 is 43646.

It can be written as a sum of positive squares in 6 ways, for example, as 1737124 + 4726276 = 1318^2 + 2174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2450 + ... + 4350.

Almost surely, 2^6463400 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 6463400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7959870).

6463400 is an abundant number, since it is smaller than the sum of its proper divisors (9456340).

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

6463400 is a wasteful number, since it uses less digits than its factorization.

6463400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1925 counting only the distinct ones).

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

The square root of 6463400 is about 2542.3217734976. The cubic root of 6463400 is about 186.2746165082.

The spelling of 6463400 in words is "six million, four hundred sixty-three thousand, four hundred".