6401064 has 16 divisors (see below), whose sum is σ = 16002720. Its totient is φ = 2133680.

The previous prime is 6401033. The next prime is 6401069. The reversal of 6401064 is 4601046.

It is a self number, because there is not a number n which added to its sum of digits gives 6401064.

It is not an unprimeable number, because it can be changed into a prime (6401069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133332 + ... + 133379.

It is an arithmetic number, because the mean of its divisors is an integer number (1000170).

Almost surely, 2^6401064 is an apocalyptic number.

It is an amenable number.

6401064 is an abundant number, since it is smaller than the sum of its proper divisors (9601656).

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

6401064 is a wasteful number, since it uses less digits than its factorization.

6401064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266720 (or 266716 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6401064 is about 2530.0324108596. The cubic root of 6401064 is about 185.6738416296.

The spelling of 6401064 in words is "six million, four hundred one thousand, sixty-four".