11840644 has 6 divisors (see below), whose sum is σ = 20721134. Its totient is φ = 5920320.

The previous prime is 11840641. The next prime is 11840657. The reversal of 11840644 is 44604811.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 1855044 = 3160^2 + 1362^2 .

It is not an unprimeable number, because it can be changed into a prime (11840641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1480077 + ... + 1480084.

Almost surely, 2^11840644 is an apocalyptic number.

It is an amenable number.

11840644 is a deficient number, since it is larger than the sum of its proper divisors (8880490).

11840644 is a wasteful number, since it uses less digits than its factorization.

11840644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960165 (or 2960163 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 11840644 is about 3441.0236848938. The cubic root of 11840644 is about 227.9249008846.

The spelling of 11840644 in words is "eleven million, eight hundred forty thousand, six hundred forty-four".