994444945 has 16 divisors (see below), whose sum is σ = 1329446160. Its totient is φ = 709035264.

The previous prime is 994444931. The next prime is 994444987. The reversal of 994444945 is 549444499.

It can be written as a sum of positive squares in 8 ways, for example, as 300017041 + 694427904 = 17321^2 + 26352^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994444945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994444892 and 994444901.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 261894 + ... + 265663.

It is an arithmetic number, because the mean of its divisors is an integer number (83090385).

Almost surely, 2^994444945 is an apocalyptic number.

It is an amenable number.

994444945 is a deficient number, since it is larger than the sum of its proper divisors (335001215).

994444945 is a wasteful number, since it uses less digits than its factorization.

994444945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527604.

The product of its digits is 3732480, while the sum is 52.

The square root of 994444945 is about 31534.8211505948. The cubic root of 994444945 is about 998.1448756417.

It can be divided in two parts, 99444494 and 5, that added together give a palindrome (99444499).

The spelling of 994444945 in words is "nine hundred ninety-four million, four hundred forty-four thousand, nine hundred forty-five".