6403380 has 96 divisors (see below), whose sum is σ = 19474560. Its totient is φ = 1566720.

The previous prime is 6403379. The next prime is 6403381. The reversal of 6403380 is 833046.

It is an interprime number because it is at equal distance from previous prime (6403379) and next prime (6403381).

It is a self number, because there is not a number n which added to its sum of digits gives 6403380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6403381) 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 31 ways as a sum of consecutive naturals, for example, 46672 + ... + 46808.

It is an arithmetic number, because the mean of its divisors is an integer number (202860).

Almost surely, 2^6403380 is an apocalyptic number.

6403380 is a gapful number since it is divisible by the number (60) 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 6403380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9737280).

6403380 is an abundant number, since it is smaller than the sum of its proper divisors (13071180).

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

6403380 is a wasteful number, since it uses less digits than its factorization.

6403380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6403380 is about 2530.4900711127. The cubic root of 6403380 is about 185.6962321137.

The spelling of 6403380 in words is "six million, four hundred three thousand, three hundred eighty".