1009245447 has 32 divisors (see below), whose sum is σ = 1710287360. Its totient is φ = 576201600.

The previous prime is 1009245437. The next prime is 1009245473. The reversal of 1009245447 is 7445429001.

It is a happy number.

1009245447 is a `hidden beast` number, since 100 + 9 + 2 + 4 + 544 + 7 = 666.

It is not a de Polignac number, because 1009245447 - 2⁶ = 1009245383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009245437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352572 + ... + 355422.

It is an arithmetic number, because the mean of its divisors is an integer number (53446480).

Almost surely, 2^1009245447 is an apocalyptic number.

1009245447 is a deficient number, since it is larger than the sum of its proper divisors (701041913).

1009245447 is a wasteful number, since it uses less digits than its factorization.

1009245447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4740 (or 4734 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1009245447 is about 31768.6236245765. The cubic root of 1009245447 is about 1003.0723665632.

The spelling of 1009245447 in words is "one billion, nine million, two hundred forty-five thousand, four hundred forty-seven".