6404382 has 12 divisors (see below), whose sum is σ = 13876200. Its totient is φ = 2134788.

The previous prime is 6404381. The next prime is 6404401. The reversal of 6404382 is 2834046.

It is a super-2 number, since 2×6404382² = 82032217603848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177882 + ... + 177917.

It is an arithmetic number, because the mean of its divisors is an integer number (1156350).

Almost surely, 2^6404382 is an apocalyptic number.

6404382 is an abundant number, since it is smaller than the sum of its proper divisors (7471818).

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

6404382 is a wasteful number, since it uses less digits than its factorization.

6404382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355807 (or 355804 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 6404382 is about 2530.6880487330. The cubic root of 6404382 is about 185.7059175153.

It can be divided in two parts, 6404 and 382, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 6404382 in words is "six million, four hundred four thousand, three hundred eighty-two".