6426920 has 64 divisors (see below), whose sum is σ = 15344640. Its totient is φ = 2419200.

The previous prime is 6426919. The next prime is 6426923. The reversal of 6426920 is 296246.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6426923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88004 + ... + 88076.

It is an arithmetic number, because the mean of its divisors is an integer number (239760).

Almost surely, 2^6426920 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 6426920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7672320).

6426920 is an abundant number, since it is smaller than the sum of its proper divisors (8917720).

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

6426920 is a wasteful number, since it uses less digits than its factorization.

6426920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6426920 is about 2535.1370771617. The cubic root of 6426920 is about 185.9235049844.

The spelling of 6426920 in words is "six million, four hundred twenty-six thousand, nine hundred twenty".