6405048 has 64 divisors (see below), whose sum is σ = 19168800. Its totient is φ = 1969920.

The previous prime is 6405043. The next prime is 6405053. The reversal of 6405048 is 8405046.

It is an interprime number because it is at equal distance from previous prime (6405043) and next prime (6405053).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6405043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1668 + ... + 3948.

Almost surely, 2^6405048 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 6405048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9584400).

6405048 is an abundant number, since it is smaller than the sum of its proper divisors (12763752).

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

6405048 is a wasteful number, since it uses less digits than its factorization.

6405048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2299 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 6405048 is about 2530.8196300803. The cubic root of 6405048 is about 185.7123545587.

The spelling of 6405048 in words is "six million, four hundred five thousand, forty-eight".