2311994 has 4 divisors (see below), whose sum is σ = 3467994. Its totient is φ = 1155996.

The previous prime is 2311993. The next prime is 2312021. The reversal of 2311994 is 4991132.

It is a happy number.

2311994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1525225 + 786769 = 1235^2 + 887^2 .

It is not an unprimeable number, because it can be changed into a prime (2311993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577997 + ... + 578000.

2^2311994 is an apocalyptic number.

2311994 is a deficient number, since it is larger than the sum of its proper divisors (1156000).

2311994 is a wasteful number, since it uses less digits than its factorization.

2311994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155999.

The product of its digits is 1944, while the sum is 29.

The square root of 2311994 is about 1520.5242516974. The cubic root of 2311994 is about 132.2296659834.

The spelling of 2311994 in words is "two million, three hundred eleven thousand, nine hundred ninety-four".