1039944903 has 16 divisors (see below), whose sum is σ = 1425454176. Its totient is φ = 673902720.

The previous prime is 1039944883. The next prime is 1039944907. The reversal of 1039944903 is 3094499301.

It is not a de Polignac number, because 1039944903 - 2²⁴ = 1023167687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039944907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127125 + ... + 135057.

It is an arithmetic number, because the mean of its divisors is an integer number (89090886).

Almost surely, 2^1039944903 is an apocalyptic number.

1039944903 is a deficient number, since it is larger than the sum of its proper divisors (385509273).

1039944903 is a wasteful number, since it uses less digits than its factorization.

1039944903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9154.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 1039944903 is about 32248.1767391584. The cubic root of 1039944903 is about 1013.1415118235.

The spelling of 1039944903 in words is "one billion, thirty-nine million, nine hundred forty-four thousand, nine hundred three".