6419904 has 56 divisors (see below), whose sum is σ = 17586960. Its totient is φ = 2064384.

The previous prime is 6419899. The next prime is 6419909. The reversal of 6419904 is 4099146.

It is an interprime number because it is at equal distance from previous prime (6419899) and next prime (6419909).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6419909) 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, 4992 + ... + 6144.

Almost surely, 2^6419904 is an apocalyptic number.

6419904 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6419904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8793480).

6419904 is an abundant number, since it is smaller than the sum of its proper divisors (11167056).

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

6419904 is a wasteful number, since it uses less digits than its factorization.

6419904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 6419904 is about 2533.7529477043. The cubic root of 6419904 is about 185.8558253770.

The spelling of 6419904 in words is "six million, four hundred nineteen thousand, nine hundred four".