6380946 has 96 divisors (see below), whose sum is σ = 16930368. Its totient is φ = 1710720.

The previous prime is 6380939. The next prime is 6380963. The reversal of 6380946 is 6490836.

6380946 = 275² + 276² + ... + 341².

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6380946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95205 + ... + 95271.

It is an arithmetic number, because the mean of its divisors is an integer number (176358).

Almost surely, 2^6380946 is an apocalyptic number.

6380946 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6380946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8465184).

6380946 is an abundant number, since it is smaller than the sum of its proper divisors (10549422).

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

6380946 is a wasteful number, since it uses less digits than its factorization.

6380946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6380946 is about 2526.0534436152. The cubic root of 6380946 is about 185.4791184541.

The spelling of 6380946 in words is "six million, three hundred eighty thousand, nine hundred forty-six".