1139744 has 12 divisors (see below), whose sum is σ = 2243934. Its totient is φ = 569856.

The previous prime is 1139741. The next prime is 1139771. The reversal of 1139744 is 4479311.

It can be written as a sum of positive squares in only one way, i.e., 1024144 + 115600 = 1012^2 + 340^2 .

It is not an unprimeable number, because it can be changed into a prime (1139741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17777 + ... + 17840.

2^1139744 is an apocalyptic number.

It is an amenable number.

1139744 is a deficient number, since it is larger than the sum of its proper divisors (1104190).

1139744 is an equidigital number, since it uses as much as digits as its factorization.

1139744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35627 (or 35619 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 1139744 is about 1067.5879354882. The cubic root of 1139744 is about 104.4565725400.

The spelling of 1139744 in words is "one million, one hundred thirty-nine thousand, seven hundred forty-four".