1003930644 has 12 divisors (see below), whose sum is σ = 2342504864. Its totient is φ = 334643544.

The previous prime is 1003930643. The next prime is 1003930649. The reversal of 1003930644 is 4460393001.

1003930644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003930643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41830432 + ... + 41830455.

Almost surely, 2^1003930644 is an apocalyptic number.

It is an amenable number.

1003930644 is an abundant number, since it is smaller than the sum of its proper divisors (1338574220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1003930644 is a wasteful number, since it uses less digits than its factorization.

1003930644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83660894 (or 83660892 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1003930644 is about 31684.8645886329. The cubic root of 1003930644 is about 1001.3085017431.

The spelling of 1003930644 in words is "one billion, three million, nine hundred thirty thousand, six hundred forty-four".