1036440681 has 32 divisors (see below), whose sum is σ = 1437198336. Its totient is φ = 663936000.

The previous prime is 1036440677. The next prime is 1036440703. The reversal of 1036440681 is 1860446301.

It is not a de Polignac number, because 1036440681 - 2² = 1036440677 is a prime.

It is a super-2 number, since 2×1036440681² = 2148418570463487522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1036442681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3688261 + ... + 3688541.

It is an arithmetic number, because the mean of its divisors is an integer number (44912448).

Almost surely, 2^1036440681 is an apocalyptic number.

It is an amenable number.

1036440681 is a deficient number, since it is larger than the sum of its proper divisors (400757655).

1036440681 is a wasteful number, since it uses less digits than its factorization.

1036440681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1036440681 is about 32193.7987972839. The cubic root of 1036440681 is about 1012.0022630231.

Adding to 1036440681 its reverse (1860446301), we get a palindrome (2896886982).

The spelling of 1036440681 in words is "one billion, thirty-six million, four hundred forty thousand, six hundred eighty-one".