6419844 has 24 divisors (see below), whose sum is σ = 16644320. Its totient is φ = 2139912.

The previous prime is 6419843. The next prime is 6419851. The reversal of 6419844 is 4489146.

It is a happy number.

6419844 is a `hidden beast` number, since 641 + 9 + 8 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6419799 and 6419808.

It is not an unprimeable number, because it can be changed into a prime (6419843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29614 + ... + 29829.

Almost surely, 2^6419844 is an apocalyptic number.

It is an amenable number.

6419844 is an abundant number, since it is smaller than the sum of its proper divisors (10224476).

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

6419844 is a wasteful number, since it uses less digits than its factorization.

6419844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59456 (or 59448 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 6419844 is about 2533.7411075325. The cubic root of 6419844 is about 185.8552463764.

The spelling of 6419844 in words is "six million, four hundred nineteen thousand, eight hundred forty-four".