2066600 has 24 divisors (see below), whose sum is σ = 4805310. Its totient is φ = 826560.

The previous prime is 2066599. The next prime is 2066609. The reversal of 2066600 is 66602.

It can be written as a sum of positive squares in 3 ways, for example, as 1737124 + 329476 = 1318^2 + 574^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2066609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4967 + ... + 5366.

2^2066600 is an apocalyptic number.

2066600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066600 is an abundant number, since it is smaller than the sum of its proper divisors (2738710).

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

2066600 is a wasteful number, since it uses less digits than its factorization.

2066600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10349 (or 10340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2066600 is about 1437.5673897247. The cubic root of 2066600 is about 127.3753748284.

The spelling of 2066600 in words is "two million, sixty-six thousand, six hundred".