6523140 has 48 divisors (see below), whose sum is σ = 19672128. Its totient is φ = 1605504.

The previous prime is 6523133. The next prime is 6523163. The reversal of 6523140 is 413256.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3402 + ... + 4961.

It is an arithmetic number, because the mean of its divisors is an integer number (409836).

Almost surely, 2^6523140 is an apocalyptic number.

6523140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6523140 is an abundant number, since it is smaller than the sum of its proper divisors (13148988).

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

6523140 is a wasteful number, since it uses less digits than its factorization.

6523140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8388 (or 8386 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 6523140 is about 2554.0438524035. The cubic root of 6523140 is about 186.8467578861.

Adding to 6523140 its reverse (413256), we get a palindrome (6936396).

The spelling of 6523140 in words is "six million, five hundred twenty-three thousand, one hundred forty".