6325640 has 16 divisors (see below), whose sum is σ = 14232780. Its totient is φ = 2530240.

The previous prime is 6325633. The next prime is 6325691. The reversal of 6325640 is 465236.

It can be written as a sum of positive squares in 2 ways, for example, as 6061444 + 264196 = 2462^2 + 514^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79031 + ... + 79110.

Almost surely, 2^6325640 is an apocalyptic number.

It is an amenable number.

6325640 is an abundant number, since it is smaller than the sum of its proper divisors (7907140).

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

6325640 is a wasteful number, since it uses less digits than its factorization.

6325640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158152 (or 158148 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 6325640 is about 2515.0825036169. The cubic root of 6325640 is about 184.9416909007.

The spelling of 6325640 in words is "six million, three hundred twenty-five thousand, six hundred forty".