1138244 has 6 divisors (see below), whose sum is σ = 1991934. Its totient is φ = 569120.

The previous prime is 1138237. The next prime is 1138273. The reversal of 1138244 is 4428311.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 56644 = 1040^2 + 238^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142277 + ... + 142284.

It is an arithmetic number, because the mean of its divisors is an integer number (331989).

2^1138244 is an apocalyptic number.

It is an amenable number.

1138244 is a deficient number, since it is larger than the sum of its proper divisors (853690).

1138244 is a wasteful number, since it uses less digits than its factorization.

1138244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284565 (or 284563 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 1138244 is about 1066.8851859502. The cubic root of 1138244 is about 104.4107278456.

The spelling of 1138244 in words is "one million, one hundred thirty-eight thousand, two hundred forty-four".