6446464 has 16 divisors (see below), whose sum is σ = 12842820. Its totient is φ = 3223168.

The previous prime is 6446459. The next prime is 6446477. The reversal of 6446464 is 4646446.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25054 + ... + 25309.

Almost surely, 2^6446464 is an apocalyptic number.

6446464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6446464 is a deficient number, since it is larger than the sum of its proper divisors (6396356).

6446464 is an equidigital number, since it uses as much as digits as its factorization.

6446464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50377 (or 50365 counting only the distinct ones).

The product of its digits is 55296, while the sum is 34.

The square root of 6446464 is about 2538.9887750835. The cubic root of 6446464 is about 186.1117761880. Note that the first 3 decimals are identical.

The spelling of 6446464 in words is "six million, four hundred forty-six thousand, four hundred sixty-four".