2681992 has 8 divisors (see below), whose sum is σ = 5028750. Its totient is φ = 1340992.

The previous prime is 2681989. The next prime is 2681993. The reversal of 2681992 is 2991862.

It can be written as a sum of positive squares in only one way, i.e., 1653796 + 1028196 = 1286^2 + 1014^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2681993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167617 + ... + 167632.

2^2681992 is an apocalyptic number.

It is an amenable number.

2681992 is a deficient number, since it is larger than the sum of its proper divisors (2346758).

2681992 is a wasteful number, since it uses less digits than its factorization.

2681992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335255 (or 335251 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The square root of 2681992 is about 1637.6788451952. The cubic root of 2681992 is about 138.9373974085.

The spelling of 2681992 in words is "two million, six hundred eighty-one thousand, nine hundred ninety-two".