1140842 has 4 divisors (see below), whose sum is σ = 1711266. Its totient is φ = 570420.

The previous prime is 1140803. The next prime is 1140847. The reversal of 1140842 is 2480411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 703921 + 436921 = 839^2 + 661^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1140847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285209 + ... + 285212.

2^1140842 is an apocalyptic number.

1140842 is a deficient number, since it is larger than the sum of its proper divisors (570424).

1140842 is an equidigital number, since it uses as much as digits as its factorization.

1140842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570423.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1140842 is about 1068.1020550490. The cubic root of 1140842 is about 104.4901053641.

The spelling of 1140842 in words is "one million, one hundred forty thousand, eight hundred forty-two".