2066610 has 64 divisors (see below), whose sum is σ = 6112512. Its totient is φ = 435456.

The previous prime is 2066609. The next prime is 2066641. The reversal of 2066610 is 166602.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2352 + ... + 3108.

It is an arithmetic number, because the mean of its divisors is an integer number (95508).

2^2066610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3056256).

2066610 is an abundant number, since it is smaller than the sum of its proper divisors (4045902).

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

2066610 is a wasteful number, since it uses less digits than its factorization.

2066610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2066610 is about 1437.5708678183. The cubic root of 2066610 is about 127.3755802788.

The spelling of 2066610 in words is "two million, sixty-six thousand, six hundred ten".