6655240 has 32 divisors (see below), whose sum is σ = 15048000. Its totient is φ = 2649024.

The previous prime is 6655237. The next prime is 6655249. The reversal of 6655240 is 425566.

It is a d-powerful number, because it can be written as 6 + 6⁸ + 5⁸ + 5⁸ + 2²² + 4³ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 6655199 and 6655208.

It is not an unprimeable number, because it can be changed into a prime (6655249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14941 + ... + 15379.

It is an arithmetic number, because the mean of its divisors is an integer number (470250).

Almost surely, 2^6655240 is an apocalyptic number.

It is an amenable number.

6655240 is an abundant number, since it is smaller than the sum of its proper divisors (8392760).

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

6655240 is a wasteful number, since it uses less digits than its factorization.

6655240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 6655240 is about 2579.7751840034. The cubic root of 6655240 is about 188.0996152325.

The spelling of 6655240 in words is "six million, six hundred fifty-five thousand, two hundred forty".