10040656 has 10 divisors (see below), whose sum is σ = 19453802. Its totient is φ = 5020320.

The previous prime is 10040651. The next prime is 10040671. The reversal of 10040656 is 65604001.

It can be written as a sum of positive squares in only one way, i.e., 8503056 + 1537600 = 2916^2 + 1240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313755 + ... + 313786.

Almost surely, 2^10040656 is an apocalyptic number.

10040656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10040656 is a deficient number, since it is larger than the sum of its proper divisors (9413146).

10040656 is an equidigital number, since it uses as much as digits as its factorization.

10040656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627549 (or 627543 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 10040656 is about 3168.6994177422. The cubic root of 10040656 is about 215.7350432073.

Adding to 10040656 its reverse (65604001), we get a palindrome (75644657).

The spelling of 10040656 in words is "ten million, forty thousand, six hundred fifty-six".