6423880 has 32 divisors (see below), whose sum is σ = 14810040. Its totient is φ = 2506240.

The previous prime is 6423863. The next prime is 6423883. The reversal of 6423880 is 883246.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4502884 + 1920996 = 2122^2 + 1386^2 .

It is not an unprimeable number, because it can be changed into a prime (6423883) 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 7 ways as a sum of consecutive naturals, for example, 319 + ... + 3598.

Almost surely, 2^6423880 is an apocalyptic number.

It is an amenable number.

6423880 is an abundant number, since it is smaller than the sum of its proper divisors (8386160).

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

6423880 is a wasteful number, since it uses less digits than its factorization.

6423880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969 (or 3965 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 6423880 is about 2534.5374331424. The cubic root of 6423880 is about 185.8941857773.

The spelling of 6423880 in words is "six million, four hundred twenty-three thousand, eight hundred eighty".