2311984 has 20 divisors (see below), whose sum is σ = 4506160. Its totient is φ = 1149120.

The previous prime is 2311957. The next prime is 2311993. The reversal of 2311984 is 4891132.

2311984 = T₁₂₄₀ + T₁₂₄₁ + T₁₂₄₂.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349 + ... + 3979.

It is an arithmetic number, because the mean of its divisors is an integer number (225308).

2^2311984 is an apocalyptic number.

2311984 is the 1242-nd centered triangular number.

It is an amenable number.

2311984 is a deficient number, since it is larger than the sum of its proper divisors (2194176).

2311984 is a wasteful number, since it uses less digits than its factorization.

2311984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 862 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 2311984 is about 1520.5209633543. The cubic root of 2311984 is about 132.2294753401.

The spelling of 2311984 in words is "two million, three hundred eleven thousand, nine hundred eighty-four".