2040311394 has 48 divisors (see below), whose sum is σ = 4841014464. Its totient is φ = 615909600.

The previous prime is 2040311369. The next prime is 2040311401. The reversal of 2040311394 is 4931130402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32484 + ... + 71664.

It is an arithmetic number, because the mean of its divisors is an integer number (100854468).

Almost surely, 2^2040311394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2040311394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420507232).

2040311394 is an abundant number, since it is smaller than the sum of its proper divisors (2800703070).

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

2040311394 is a wasteful number, since it uses less digits than its factorization.

2040311394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39463 (or 39460 counting only the distinct ones).

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

The square root of 2040311394 is about 45169.8062205274. The cubic root of 2040311394 is about 1268.3296688650.

Adding to 2040311394 its reverse (4931130402), we get a palindrome (6971441796).

The spelling of 2040311394 in words is "two billion, forty million, three hundred eleven thousand, three hundred ninety-four".