6399360 has 192 divisors, whose sum is σ = 24345360. Its totient is φ = 1536000.

The previous prime is 6399347. The next prime is 6399377. The reversal of 6399360 is 639936.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63310 + ... + 63410.

Almost surely, 2^6399360 is an apocalyptic number.

6399360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6399360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12172680).

6399360 is an abundant number, since it is smaller than the sum of its proper divisors (17946000).

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

6399360 is a wasteful number, since it uses less digits than its factorization.

6399360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 6399360 is about 2529.6956338659. The cubic root of 6399360 is about 185.6573643531.

It can be divided in two parts, 639 and 9360, that added together give a palindrome (9999).

The spelling of 6399360 in words is "six million, three hundred ninety-nine thousand, three hundred sixty".