6420322 has 8 divisors (see below), whose sum is σ = 10197036. Its totient is φ = 3021312.

The previous prime is 6420307. The next prime is 6420343. The reversal of 6420322 is 2230246.

It can be written as a sum of positive squares in 2 ways, for example, as 5294601 + 1125721 = 2301^2 + 1061^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6420322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94383 + ... + 94450.

Almost surely, 2^6420322 is an apocalyptic number.

6420322 is a deficient number, since it is larger than the sum of its proper divisors (3776714).

6420322 is a wasteful number, since it uses less digits than its factorization.

6420322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188852.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 6420322 is about 2533.8354326988. The cubic root of 6420322 is about 185.8598589809.

Adding to 6420322 its reverse (2230246), we get a palindrome (8650568).

The spelling of 6420322 in words is "six million, four hundred twenty thousand, three hundred twenty-two".