6401682 has 72 divisors (see below), whose sum is σ = 16900416. Its totient is φ = 1712304.

The previous prime is 6401669. The next prime is 6401687. The reversal of 6401682 is 2861046.

6401682 is a `hidden beast` number, since 640 + 16 + 8 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (6401687) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 136183 + ... + 136229.

It is an arithmetic number, because the mean of its divisors is an integer number (234728).

Almost surely, 2^6401682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6401682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8450208).

6401682 is an abundant number, since it is smaller than the sum of its proper divisors (10498734).

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

6401682 is a wasteful number, since it uses less digits than its factorization.

6401682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 6401682 is about 2530.1545407346. The cubic root of 6401682 is about 185.6798168207.

The spelling of 6401682 in words is "six million, four hundred one thousand, six hundred eighty-two".