2066438 has 12 divisors (see below), whose sum is σ = 3407460. Its totient is φ = 939180.

The previous prime is 2066437. The next prime is 2066443. The reversal of 2066438 is 8346602.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2066438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066437) 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, 4028 + ... + 4511.

It is an arithmetic number, because the mean of its divisors is an integer number (283955).

2^2066438 is an apocalyptic number.

2066438 is a deficient number, since it is larger than the sum of its proper divisors (1341022).

2066438 is a wasteful number, since it uses less digits than its factorization.

2066438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8563 (or 8552 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2066438 is about 1437.5110434358. The cubic root of 2066438 is about 127.3720464388.

It can be divided in two parts, 20664 and 38, that added together give a palindrome (20702).

The spelling of 2066438 in words is "two million, sixty-six thousand, four hundred thirty-eight".