10100644 has 6 divisors (see below), whose sum is σ = 17676134. Its totient is φ = 5050320.

The previous prime is 10100641. The next prime is 10100659. The reversal of 10100644 is 44600101.

It is a happy number.

10100644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 9998244 + 102400 = 3162^2 + 320^2 .

It is not an unprimeable number, because it can be changed into a prime (10100641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262577 + ... + 1262584.

Almost surely, 2^10100644 is an apocalyptic number.

It is an amenable number.

10100644 is a deficient number, since it is larger than the sum of its proper divisors (7575490).

10100644 is a wasteful number, since it uses less digits than its factorization.

10100644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525165 (or 2525163 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10100644 is about 3178.1510348000. The cubic root of 10100644 is about 216.1638274723.

Adding to 10100644 its reverse (44600101), we get a palindrome (54700745).

The spelling of 10100644 in words is "ten million, one hundred thousand, six hundred forty-four".