10644026 has 4 divisors (see below), whose sum is σ = 15966042. Its totient is φ = 5322012.

The previous prime is 10644019. The next prime is 10644037. The reversal of 10644026 is 62044601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6255001 + 4389025 = 2501^2 + 2095^2 .

It is a super-2 number, since 2×10644026² = 226590578977352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10643992 and 10644010.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2661005 + ... + 2661008.

Almost surely, 2^10644026 is an apocalyptic number.

10644026 is a deficient number, since it is larger than the sum of its proper divisors (5322016).

10644026 is an equidigital number, since it uses as much as digits as its factorization.

10644026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5322015.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 10644026 is about 3262.5183524388. The cubic root of 10644026 is about 219.9726274484.

Adding to 10644026 its reverse (62044601), we get a palindrome (72688627).

The spelling of 10644026 in words is "ten million, six hundred forty-four thousand, twenty-six".