6375540 has 48 divisors (see below), whose sum is σ = 18164160. Its totient is φ = 1670400.

The previous prime is 6375539. The next prime is 6375547. The reversal of 6375540 is 455736.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6375498 and 6375507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6375547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2640 + ... + 4440.

It is an arithmetic number, because the mean of its divisors is an integer number (378420).

Almost surely, 2^6375540 is an apocalyptic number.

6375540 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 6375540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9082080).

6375540 is an abundant number, since it is smaller than the sum of its proper divisors (11788620).

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

6375540 is a wasteful number, since it uses less digits than its factorization.

6375540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 6375540 is about 2524.9831682607. The cubic root of 6375540 is about 185.4267237458.

The spelling of 6375540 in words is "six million, three hundred seventy-five thousand, five hundred forty".