11822740 has 12 divisors (see below), whose sum is σ = 24827796. Its totient is φ = 4729088.

The previous prime is 11822729. The next prime is 11822743. The reversal of 11822740 is 4722811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3319684 + 8503056 = 1822^2 + 2916^2 .

It is a super-2 number, since 2×11822740² = 279554362215200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11822743) 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, 295549 + ... + 295588.

It is an arithmetic number, because the mean of its divisors is an integer number (2068983).

Almost surely, 2^11822740 is an apocalyptic number.

11822740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11822740 is an abundant number, since it is smaller than the sum of its proper divisors (13005056).

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

11822740 is a wasteful number, since it uses less digits than its factorization.

11822740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591146 (or 591144 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 11822740 is about 3438.4211493068. The cubic root of 11822740 is about 227.8099627114.

The spelling of 11822740 in words is "eleven million, eight hundred twenty-two thousand, seven hundred forty".