1040785 has 8 divisors (see below), whose sum is σ = 1279656. Its totient is φ = 812160.

The previous prime is 1040783. The next prime is 1040797. The reversal of 1040785 is 5870401.

It can be written as a sum of positive squares in 4 ways, for example, as 121104 + 919681 = 348^2 + 959^2 .

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

It is not a de Polignac number, because 1040785 - 2¹ = 1040783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2334 + ... + 2743.

It is an arithmetic number, because the mean of its divisors is an integer number (159957).

2^1040785 is an apocalyptic number.

It is an amenable number.

1040785 is a deficient number, since it is larger than the sum of its proper divisors (238871).

1040785 is an equidigital number, since it uses as much as digits as its factorization.

1040785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 1040785 is about 1020.1887080340. The cubic root of 1040785 is about 101.3414253214.

The spelling of 1040785 in words is "one million, forty thousand, seven hundred eighty-five".