11881944 has 32 divisors (see below), whose sum is σ = 33006000. Its totient is φ = 3960576.

The previous prime is 11881931. The next prime is 11881957. The reversal of 11881944 is 44918811.

It is an interprime number because it is at equal distance from previous prime (11881931) and next prime (11881957).

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11881899 and 11881908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27289 + ... + 27720.

Almost surely, 2^11881944 is an apocalyptic number.

It is an amenable number.

11881944 is an abundant number, since it is smaller than the sum of its proper divisors (21124056).

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

11881944 is a wasteful number, since it uses less digits than its factorization.

11881944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55024 (or 55014 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 11881944 is about 3447.0195821898. The cubic root of 11881944 is about 228.1895929931.

The spelling of 11881944 in words is "eleven million, eight hundred eighty-one thousand, nine hundred forty-four".