2066320 has 40 divisors (see below), whose sum is σ = 5017536. Its totient is φ = 789888.

The previous prime is 2066293. The next prime is 2066321. The reversal of 2066320 is 236602.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2066321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1279 + ... + 2401.

2^2066320 is an apocalyptic number.

2066320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2066320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508768).

2066320 is an abundant number, since it is smaller than the sum of its proper divisors (2951216).

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

2066320 is a wasteful number, since it uses less digits than its factorization.

2066320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2066320 is about 1437.4699996869. The cubic root of 2066320 is about 127.3696219467.

The spelling of 2066320 in words is "two million, sixty-six thousand, three hundred twenty".