2066904 has 64 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 590112.

The previous prime is 2066903. The next prime is 2066923. The reversal of 2066904 is 4096602.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 829 + ... + 2195.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

2^2066904 is an apocalyptic number.

2066904 is a gapful number since it is divisible by the number (24) 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 2066904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3283200).

2066904 is an abundant number, since it is smaller than the sum of its proper divisors (4499496).

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

2066904 is a wasteful number, since it uses less digits than its factorization.

2066904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1379 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2066904 is about 1437.6731200102. The cubic root of 2066904 is about 127.3816202259.

The spelling of 2066904 in words is "two million, sixty-six thousand, nine hundred four".