6446422 has 4 divisors (see below), whose sum is σ = 9669636. Its totient is φ = 3223210.

The previous prime is 6446413. The next prime is 6446437. The reversal of 6446422 is 2246446.

It is a semiprime because it is the product of two primes.

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, 1611604 + ... + 1611607.

It is an arithmetic number, because the mean of its divisors is an integer number (2417409).

Almost surely, 2^6446422 is an apocalyptic number.

6446422 is a deficient number, since it is larger than the sum of its proper divisors (3223214).

6446422 is a wasteful number, since it uses less digits than its factorization.

6446422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223213.

The product of its digits is 9216, while the sum is 28.

The square root of 6446422 is about 2538.9805040606. The cubic root of 6446422 is about 186.1113720020. Note that the first 3 decimals are identical.

The spelling of 6446422 in words is "six million, four hundred forty-six thousand, four hundred twenty-two".