10640008 has 8 divisors (see below), whose sum is σ = 19950030. Its totient is φ = 5320000.

The previous prime is 10639987. The next prime is 10640009. The reversal of 10640008 is 80004601.

It can be written as a sum of positive squares in only one way, i.e., 8892324 + 1747684 = 2982^2 + 1322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×10640008² = 226419540480128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10640009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664993 + ... + 665008.

Almost surely, 2^10640008 is an apocalyptic number.

It is an amenable number.

10640008 is a deficient number, since it is larger than the sum of its proper divisors (9310022).

10640008 is a wasteful number, since it uses less digits than its factorization.

10640008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330007 (or 1330003 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 10640008 is about 3261.9025123385. The cubic root of 10640008 is about 219.9449449013.

Adding to 10640008 its reverse (80004601), we get a palindrome (90644609).

The spelling of 10640008 in words is "ten million, six hundred forty thousand, eight".