11820562 has 8 divisors (see below), whose sum is σ = 19094796. Its totient is φ = 5455632.

The previous prime is 11820539. The next prime is 11820563. The reversal of 11820562 is 26502811.

It can be written as a sum of positive squares in 2 ways, for example, as 11485321 + 335241 = 3389^2 + 579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11820563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227293 + ... + 227344.

Almost surely, 2^11820562 is an apocalyptic number.

11820562 is a deficient number, since it is larger than the sum of its proper divisors (7274234).

11820562 is a wasteful number, since it uses less digits than its factorization.

11820562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454652.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 11820562 is about 3438.1044195894. The cubic root of 11820562 is about 227.7959727065.

The spelling of 11820562 in words is "eleven million, eight hundred twenty thousand, five hundred sixty-two".