1140742 has 8 divisors (see below), whose sum is σ = 1736856. Its totient is φ = 561792.

The previous prime is 1140721. The next prime is 1140749. The reversal of 1140742 is 2470411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4123 + ... + 4390.

It is an arithmetic number, because the mean of its divisors is an integer number (217107).

2^1140742 is an apocalyptic number.

1140742 is a deficient number, since it is larger than the sum of its proper divisors (596114).

1140742 is an equidigital number, since it uses as much as digits as its factorization.

1140742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582.

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

The square root of 1140742 is about 1068.0552420170. The cubic root of 1140742 is about 104.4870522636.

It can be divided in two parts, 11407 and 42, that added together give a square (11449 = 107²).

The spelling of 1140742 in words is "one million, one hundred forty thousand, seven hundred forty-two".