2658680 has 16 divisors (see below), whose sum is σ = 5982120. Its totient is φ = 1063456.

The previous prime is 2658671. The next prime is 2658683. The reversal of 2658680 is 868562.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2658680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33194 + ... + 33273.

2^2658680 is an apocalyptic number.

2658680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2658680 is an abundant number, since it is smaller than the sum of its proper divisors (3323440).

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

2658680 is a wasteful number, since it uses less digits than its factorization.

2658680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66478 (or 66474 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2658680 is about 1630.5459208498. The cubic root of 2658680 is about 138.5336752949.

The spelling of 2658680 in words is "two million, six hundred fifty-eight thousand, six hundred eighty".