6426320 has 20 divisors (see below), whose sum is σ = 14941380. Its totient is φ = 2570496.

The previous prime is 6426317. The next prime is 6426349. The reversal of 6426320 is 236246.

It can be written as a sum of positive squares in 2 ways, for example, as 3904576 + 2521744 = 1976^2 + 1588^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 40085 + ... + 40244.

It is an arithmetic number, because the mean of its divisors is an integer number (747069).

Almost surely, 2^6426320 is an apocalyptic number.

It is an amenable number.

6426320 is an abundant number, since it is smaller than the sum of its proper divisors (8515060).

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

6426320 is a wasteful number, since it uses less digits than its factorization.

6426320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80342 (or 80336 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 6426320 is about 2535.0187376033. The cubic root of 6426320 is about 185.9177190312.

The spelling of 6426320 in words is "six million, four hundred twenty-six thousand, three hundred twenty".