6382440 has 48 divisors (see below), whose sum is σ = 20744100. Its totient is φ = 1701888.

The previous prime is 6382433. The next prime is 6382469. The reversal of 6382440 is 442836.

6382440 is a `hidden beast` number, since 638 + 24 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6380676 + 1764 = 2526^2 + 42^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8505 + ... + 9224.

Almost surely, 2^6382440 is an apocalyptic number.

6382440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6382440 is an abundant number, since it is smaller than the sum of its proper divisors (14361660).

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

6382440 is a wasteful number, since it uses less digits than its factorization.

6382440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17746 (or 17739 counting only the distinct ones).

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

The square root of 6382440 is about 2526.3491445166. The cubic root of 6382440 is about 185.4935930152.

The spelling of 6382440 in words is "six million, three hundred eighty-two thousand, four hundred forty".