1140724 has 12 divisors (see below), whose sum is σ = 2149924. Its totient is φ = 526464.

The previous prime is 1140721. The next prime is 1140749. The reversal of 1140724 is 4270411.

It can be written as a sum of positive squares in 2 ways, for example, as 176400 + 964324 = 420^2 + 982^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10917 + ... + 11020.

2^1140724 is an apocalyptic number.

It is an amenable number.

1140724 is a deficient number, since it is larger than the sum of its proper divisors (1009200).

1140724 is a wasteful number, since it uses less digits than its factorization.

1140724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21954 (or 21952 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1140724 is about 1068.0468154533. The cubic root of 1140724 is about 104.4865026866.

The spelling of 1140724 in words is "one million, one hundred forty thousand, seven hundred twenty-four".