1040786636 has 24 divisors (see below), whose sum is σ = 1948677360. Its totient is φ = 484920000.

The previous prime is 1040786633. The next prime is 1040786641. The reversal of 1040786636 is 6366870401.

It is a junction number, because it is equal to n+sod(n) for n = 1040786593 and 1040786602.

It is not an unprimeable number, because it can be changed into a prime (1040786633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107615 + ... + 116886.

It is an arithmetic number, because the mean of its divisors is an integer number (81194890).

Almost surely, 2^1040786636 is an apocalyptic number.

It is an amenable number.

1040786636 is a deficient number, since it is larger than the sum of its proper divisors (907890724).

1040786636 is a wasteful number, since it uses less digits than its factorization.

1040786636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224585 (or 224583 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1040786636 is about 32261.2249612441. The cubic root of 1040786636 is about 1013.4147842058.

The spelling of 1040786636 in words is "one billion, forty million, seven hundred eighty-six thousand, six hundred thirty-six".