6400046 has 8 divisors (see below), whose sum is σ = 9622800.
Its totient is φ = 3192448.
The previous prime is 6400033. The next prime is 6400091.
6400046 is nontrivially palindromic in base 10.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2666 + ... + 4461.
It is an arithmetic number, because the mean of its divisors is an integer number (1202850).
Almost surely, 26400046 is an apocalyptic number.
6400046 is a deficient number, since it is larger than the sum of its proper divisors (3222754).
6400046 is a wasteful number, since it uses less digits than its factorization.
6400046 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7578.
The product of its (nonzero) digits is 576, while the sum is 20.
The square root of 6400046 is about 2529.8312196666.
The cubic root of 6400046 is about 185.6639981624.
It can be divided in two parts, 64000 and 46, that added together give a palindrome (64046).
The spelling of 6400046 in words is "six million, four hundred thousand, forty-six".