11944138 has 12 divisors (see below), whose sum is σ = 18104310. Its totient is φ = 5909936.

The previous prime is 11944129. The next prime is 11944139. The reversal of 11944138 is 83144911.

It can be written as a sum of positive squares in 3 ways, for example, as 2537649 + 9406489 = 1593^2 + 3067^2 .

It is not an unprimeable number, because it can be changed into a prime (11944139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44268 + ... + 44536.

Almost surely, 2^11944138 is an apocalyptic number.

11944138 is a deficient number, since it is larger than the sum of its proper divisors (6160172).

11944138 is an equidigital number, since it uses as much as digits as its factorization.

11944138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 420 counting only the distinct ones).

The product of its digits is 3456, while the sum is 31.

The square root of 11944138 is about 3456.0292244135. The cubic root of 11944138 is about 228.5870401167.

The spelling of 11944138 in words is "eleven million, nine hundred forty-four thousand, one hundred thirty-eight".