6384040 has 32 divisors (see below), whose sum is σ = 15470280. Its totient is φ = 2356992.

The previous prime is 6384013. The next prime is 6384067. The reversal of 6384040 is 404836.

It is an interprime number because it is at equal distance from previous prime (6384013) and next prime (6384067).

It can be written as a sum of positive squares in 4 ways, for example, as 2439844 + 3944196 = 1562^2 + 1986^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6383996 and 6384014.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5619 + ... + 6658.

Almost surely, 2^6384040 is an apocalyptic number.

It is an amenable number.

6384040 is an abundant number, since it is smaller than the sum of its proper divisors (9086240).

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

6384040 is a wasteful number, since it uses less digits than its factorization.

6384040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12301 (or 12297 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 6384040 is about 2526.6657871590. The cubic root of 6384040 is about 185.5090920486.

Adding to 6384040 its reverse (404836), we get a palindrome (6788876).

The spelling of 6384040 in words is "six million, three hundred eighty-four thousand, forty".