11939144 has 64 divisors (see below), whose sum is σ = 27600000. Its totient is φ = 4826304.

The previous prime is 11939113. The next prime is 11939177. The reversal of 11939144 is 44193911.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11939144.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 52022 + ... + 52250.

It is an arithmetic number, because the mean of its divisors is an integer number (431250).

Almost surely, 2^11939144 is an apocalyptic number.

11939144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11939144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13800000).

11939144 is an abundant number, since it is smaller than the sum of its proper divisors (15660856).

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

11939144 is a wasteful number, since it uses less digits than its factorization.

11939144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 257 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 11939144 is about 3455.3066434110. The cubic root of 11939144 is about 228.5551772672. Note that the first 3 decimals are identical.

The spelling of 11939144 in words is "eleven million, nine hundred thirty-nine thousand, one hundred forty-four".