6394680 has 128 divisors (see below), whose sum is σ = 22118400. Its totient is φ = 1641600.

The previous prime is 6394657. The next prime is 6394709. The reversal of 6394680 is 864936.

6394680 = 240² + 241² + ... + 320².

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 31 ways as a sum of consecutive naturals, for example, 33385 + ... + 33575.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

Almost surely, 2^6394680 is an apocalyptic number.

6394680 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 6394680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11059200).

6394680 is an abundant number, since it is smaller than the sum of its proper divisors (15723720).

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

6394680 is a wasteful number, since it uses less digits than its factorization.

6394680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 232 counting only the distinct ones).

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

The square root of 6394680 is about 2528.7704522159. The cubic root of 6394680 is about 185.6120948073.

The spelling of 6394680 in words is "six million, three hundred ninety-four thousand, six hundred eighty".