11819822 has 16 divisors (see below), whose sum is σ = 20520960. Its totient is φ = 5001048.

The previous prime is 11819809. The next prime is 11819831. The reversal of 11819822 is 22891811.

It is a super-2 number, since 2×11819822² = 279416384223368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 4238 + ... + 6449.

It is an arithmetic number, because the mean of its divisors is an integer number (1282560).

Almost surely, 2^11819822 is an apocalyptic number.

11819822 is a deficient number, since it is larger than the sum of its proper divisors (8701138).

11819822 is a wasteful number, since it uses less digits than its factorization.

11819822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10775.

The product of its digits is 2304, while the sum is 32.

The square root of 11819822 is about 3437.9968004639. The cubic root of 11819822 is about 227.7912190539.

The spelling of 11819822 in words is "eleven million, eight hundred nineteen thousand, eight hundred twenty-two".