10442905 has 24 divisors (see below), whose sum is σ = 14143752. Its totient is φ = 7392000.

The previous prime is 10442903. The next prime is 10442909. The reversal of 10442905 is 50924401.

It can be written as a sum of positive squares in 4 ways, for example, as 1024144 + 9418761 = 1012^2 + 3069^2 .

It is not a de Polignac number, because 10442905 - 2¹ = 10442903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10442905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10442903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24595 + ... + 25015.

It is an arithmetic number, because the mean of its divisors is an integer number (589323).

Almost surely, 2^10442905 is an apocalyptic number.

It is an amenable number.

10442905 is a deficient number, since it is larger than the sum of its proper divisors (3700847).

10442905 is a wasteful number, since it uses less digits than its factorization.

10442905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 10442905 is about 3231.5483904779. The cubic root of 10442905 is about 218.5783327999.

The spelling of 10442905 in words is "ten million, four hundred forty-two thousand, nine hundred five".