1045636 has 12 divisors (see below), whose sum is σ = 1937628. Its totient is φ = 492032.

The previous prime is 1045633. The next prime is 1045643. The reversal of 1045636 is 6365401.

It can be written as a sum of positive squares in 2 ways, for example, as 980100 + 65536 = 990^2 + 256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1045636.

It is not an unprimeable number, because it can be changed into a prime (1045633) 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 3 ways as a sum of consecutive naturals, for example, 7621 + ... + 7756.

It is an arithmetic number, because the mean of its divisors is an integer number (161469).

2^1045636 is an apocalyptic number.

It is an amenable number.

1045636 is a deficient number, since it is larger than the sum of its proper divisors (891992).

1045636 is a wasteful number, since it uses less digits than its factorization.

1045636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15398 (or 15396 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1045636 is about 1022.5634454644. The cubic root of 1045636 is about 101.4986289218.

It can be divided in two parts, 1045 and 636, that added together give a square (1681 = 41²).

The spelling of 1045636 in words is "one million, forty-five thousand, six hundred thirty-six".