11805572 has 12 divisors (see below), whose sum is σ = 20850060. Its totient is φ = 5848416.

The previous prime is 11805533. The next prime is 11805641. The reversal of 11805572 is 27550811.

It can be written as a sum of positive squares in 2 ways, for example, as 9096256 + 2709316 = 3016^2 + 1646^2 .

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, 13103 + ... + 13974.

It is an arithmetic number, because the mean of its divisors is an integer number (1737505).

Almost surely, 2^11805572 is an apocalyptic number.

It is an amenable number.

11805572 is a deficient number, since it is larger than the sum of its proper divisors (9044488).

11805572 is a wasteful number, since it uses less digits than its factorization.

11805572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27190 (or 27188 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 11805572 is about 3435.9237476987. The cubic root of 11805572 is about 227.6996403985.

The spelling of 11805572 in words is "eleven million, eight hundred five thousand, five hundred seventy-two".