11822540 has 12 divisors (see below), whose sum is σ = 24827376. Its totient is φ = 4729008.

The previous prime is 11822533. The next prime is 11822567. The reversal of 11822540 is 4522811.

11822540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 295544 + ... + 295583.

It is an arithmetic number, because the mean of its divisors is an integer number (2068948).

Almost surely, 2^11822540 is an apocalyptic number.

11822540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11822540 is an abundant number, since it is smaller than the sum of its proper divisors (13004836).

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

11822540 is a wasteful number, since it uses less digits than its factorization.

11822540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591136 (or 591134 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 11822540 is about 3438.3920660681. The cubic root of 11822540 is about 227.8086781178.

The spelling of 11822540 in words is "eleven million, eight hundred twenty-two thousand, five hundred forty".