2066624 has 42 divisors (see below), whose sum is σ = 4777740. Its totient is φ = 884352.

The previous prime is 2066609. The next prime is 2066641. The reversal of 2066624 is 4266602.

It is a junction number, because it is equal to n+sod(n) for n = 2066593 and 2066602.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2807 + ... + 3465.

2^2066624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2388870).

2066624 is an abundant number, since it is smaller than the sum of its proper divisors (2711116).

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

2066624 is an equidigital number, since it uses as much as digits as its factorization.

2066624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2066624 is about 1437.5757371353. The cubic root of 2066624 is about 127.3758679084.

The spelling of 2066624 in words is "two million, sixty-six thousand, six hundred twenty-four".