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999002449 = 316072

999002449 has 3 divisors (see below), whose sum is σ = 999034057. Its totient is φ = 998970842.

The previous prime is 999002443. The next prime is 999002453. The reversal of 999002449 is 944200999.

The square root of 999002449 is 31607.

It is a perfect power (a square), and thus also a powerful number.

999002449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 944200999 = 7134885857.

It is not a de Polignac number, because 999002449 - 29 = 999001937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 999002399 and 999002408.

It is not an unprimeable number, because it can be changed into a prime (999002443) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 15804 + ... + 47410.

Almost surely, 2999002449 is an apocalyptic number.

999002449 is the 31607-th square number.

999002449 is the 15804-th centered octagonal number.

It is an amenable number.

999002449 is a deficient number, since it is larger than the sum of its proper divisors (31608).

999002449 is an frugal number, since it uses more digits than its factorization.

999002449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63214 (or 31607 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 46.

The cubic root of 999002449 is about 999.6673723711.

The spelling of 999002449 in words is "nine hundred ninety-nine million, two thousand, four hundred forty-nine".

Divisors: 1 31607 999002449