2064390 has 16 divisors (see below), whose sum is σ = 4954608. Its totient is φ = 550496.

The previous prime is 2064389. The next prime is 2064421. The reversal of 2064390 is 934602.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2064390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34377 + ... + 34436.

It is an arithmetic number, because the mean of its divisors is an integer number (309663).

2^2064390 is an apocalyptic number.

2064390 is an abundant number, since it is smaller than the sum of its proper divisors (2890218).

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

2064390 is a wasteful number, since it uses less digits than its factorization.

2064390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68823.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 2064390 is about 1436.7985244981. The cubic root of 2064390 is about 127.3299540112.

Adding to 2064390 its reverse (934602), we get a palindrome (2998992).

The spelling of 2064390 in words is "two million, sixty-four thousand, three hundred ninety".