11749644 has 24 divisors (see below), whose sum is σ = 30462320. Its totient is φ = 3916512.

The previous prime is 11749643. The next prime is 11749667. The reversal of 11749644 is 44694711.

11749644 is a `hidden beast` number, since 1 + 1 + 7 + 4 + 9 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11749599 and 11749608.

It is not an unprimeable number, because it can be changed into a prime (11749643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54289 + ... + 54504.

Almost surely, 2^11749644 is an apocalyptic number.

It is an amenable number.

11749644 is an abundant number, since it is smaller than the sum of its proper divisors (18712676).

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

11749644 is a wasteful number, since it uses less digits than its factorization.

11749644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108806 (or 108798 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 11749644 is about 3427.7753718702. The cubic root of 11749644 is about 227.3395011747.

The spelling of 11749644 in words is "eleven million, seven hundred forty-nine thousand, six hundred forty-four".