2813668 has 24 divisors (see below), whose sum is σ = 5785920. Its totient is φ = 1180320.

The previous prime is 2813663. The next prime is 2813669. The reversal of 2813668 is 8663182.

It is a super-2 number, since 2×2813668² = 15833455228448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2813663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1888 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (241080).

2^2813668 is an apocalyptic number.

It is an amenable number.

2813668 is an abundant number, since it is smaller than the sum of its proper divisors (2972252).

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

2813668 is a wasteful number, since it uses less digits than its factorization.

2813668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947 (or 4945 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 2813668 is about 1677.3991772980. The cubic root of 2813668 is about 141.1749417182.

It can be divided in two parts, 2813 and 668, that added together give a square (3481 = 59²).

The spelling of 2813668 in words is "two million, eight hundred thirteen thousand, six hundred sixty-eight".