2066650 has 12 divisors (see below), whose sum is σ = 3844062. Its totient is φ = 826640.

The previous prime is 2066641. The next prime is 2066653. The reversal of 2066650 is 566602.

It can be written as a sum of positive squares in 3 ways, for example, as 1934881 + 131769 = 1391^2 + 363^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2066653) 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, 20617 + ... + 20716.

2^2066650 is an apocalyptic number.

2066650 is a deficient number, since it is larger than the sum of its proper divisors (1777412).

2066650 is a wasteful number, since it uses less digits than its factorization.

2066650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41345 (or 41340 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2066650 is about 1437.5847801086. The cubic root of 2066650 is about 127.3764020740.

The spelling of 2066650 in words is "two million, sixty-six thousand, six hundred fifty".