10640836 has 18 divisors (see below), whose sum is σ = 19655790. Its totient is φ = 5039712.

The previous prime is 10640831. The next prime is 10640857. The reversal of 10640836 is 63804601.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 207936 = 3230^2 + 456^2 .

It is a super-2 number, since 2×10640836² = 226454781557792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640831) 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 5 ways as a sum of consecutive naturals, for example, 2241 + ... + 5128.

Almost surely, 2^10640836 is an apocalyptic number.

It is an amenable number.

10640836 is a deficient number, since it is larger than the sum of its proper divisors (9014954).

10640836 is a wasteful number, since it uses less digits than its factorization.

10640836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411 (or 7390 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 10640836 is about 3262.0294296649. The cubic root of 10640836 is about 219.9506500878.

It can be divided in two parts, 10640 and 836, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 10640836 in words is "ten million, six hundred forty thousand, eight hundred thirty-six".