2655680 has 56 divisors (see below), whose sum is σ = 6504432. Its totient is φ = 1032192.

The previous prime is 2655661. The next prime is 2655691. The reversal of 2655680 is 865562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 13664 + ... + 13856.

2^2655680 is an apocalyptic number.

2655680 is a gapful number since it is divisible by the number (20) 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 2655680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3252216).

2655680 is an abundant number, since it is smaller than the sum of its proper divisors (3848752).

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

2655680 is a wasteful number, since it uses less digits than its factorization.

2655680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2655680 is about 1629.6257239010. The cubic root of 2655680 is about 138.4815494978.

The spelling of 2655680 in words is "two million, six hundred fifty-five thousand, six hundred eighty".