6466000 has 80 divisors (see below), whose sum is σ = 16190928. Its totient is φ = 2496000.

The previous prime is 6465997. The next prime is 6466037. The reversal of 6466000 is 6646.

It can be written as a sum of positive squares in 8 ways, for example, as 3283344 + 3182656 = 1812^2 + 1784^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105970 + ... + 106030.

Almost surely, 2^6466000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6466000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8095464).

6466000 is an abundant number, since it is smaller than the sum of its proper divisors (9724928).

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

6466000 is a wasteful number, since it uses less digits than its factorization.

6466000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 6466000 is about 2542.8330656966. The cubic root of 6466000 is about 186.2995904165.

The spelling of 6466000 in words is "six million, four hundred sixty-six thousand".