1139244 has 24 divisors (see below), whose sum is σ = 2681280. Its totient is φ = 376464.

The previous prime is 1139239. The next prime is 1139249. The reversal of 1139244 is 4429311.

It is an interprime number because it is at equal distance from previous prime (1139239) and next prime (1139249).

It is not an unprimeable number, because it can be changed into a prime (1139249) 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, 1327 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (111720).

2^1139244 is an apocalyptic number.

It is an amenable number.

1139244 is an abundant number, since it is smaller than the sum of its proper divisors (1542036).

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

1139244 is a wasteful number, since it uses less digits than its factorization.

1139244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 827 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 1139244 is about 1067.3537370525. The cubic root of 1139244 is about 104.4412954469.

The spelling of 1139244 in words is "one million, one hundred thirty-nine thousand, two hundred forty-four".