2064381 has 20 divisors (see below), whose sum is σ = 3092160. Its totient is φ = 1224520.

The previous prime is 2064379. The next prime is 2064389. The reversal of 2064381 is 1834602.

It is a happy number.

It is not a de Polignac number, because 2064381 - 2¹ = 2064379 is a prime.

It is a super-2 number, since 2×2064381² = 8523337826322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43900 + ... + 43946.

It is an arithmetic number, because the mean of its divisors is an integer number (154608).

2^2064381 is an apocalyptic number.

It is an amenable number.

2064381 is a deficient number, since it is larger than the sum of its proper divisors (1027779).

2064381 is an frugal number, since it uses more digits than its factorization.

2064381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2064381 is about 1436.7953925316. The cubic root of 2064381 is about 127.3297689733.

Adding to 2064381 its reverse (1834602), we get a palindrome (3898983).

The spelling of 2064381 in words is "two million, sixty-four thousand, three hundred eighty-one".