2691268 has 6 divisors (see below), whose sum is σ = 4709726. Its totient is φ = 1345632.

The previous prime is 2691251. The next prime is 2691277. The reversal of 2691268 is 8621962.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2125764 + 565504 = 1458^2 + 752^2 .

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336405 + ... + 336412.

2^2691268 is an apocalyptic number.

It is an amenable number.

2691268 is a deficient number, since it is larger than the sum of its proper divisors (2018458).

2691268 is a wasteful number, since it uses less digits than its factorization.

2691268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672821 (or 672819 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 2691268 is about 1640.5084577655. The cubic root of 2691268 is about 139.0973904710.

The spelling of 2691268 in words is "two million, six hundred ninety-one thousand, two hundred sixty-eight".