2191468 has 12 divisors (see below), whose sum is σ = 3845520. Its totient is φ = 1092752.

The previous prime is 2191459. The next prime is 2191471. The reversal of 2191468 is 8641912.

It is a happy number.

2191468 is nontrivially palindromic in base 9.

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, 2193 + ... + 3031.

It is an arithmetic number, because the mean of its divisors is an integer number (320460).

2^2191468 is an apocalyptic number.

It is an amenable number.

2191468 is a deficient number, since it is larger than the sum of its proper divisors (1654052).

2191468 is a wasteful number, since it uses less digits than its factorization.

2191468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1494 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 2191468 is about 1480.3607668403. The cubic root of 2191468 is about 129.8907958647.

The spelling of 2191468 in words is "two million, one hundred ninety-one thousand, four hundred sixty-eight".