1445430847 has 32 divisors (see below), whose sum is σ = 1743206400. Its totient is φ = 1172441088.

The previous prime is 1445430821. The next prime is 1445430859. The reversal of 1445430847 is 7480345441.

It is not a de Polignac number, because 1445430847 - 2¹⁵ = 1445398079 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 (1445430817) 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, 3094908 + ... + 3095374.

It is an arithmetic number, because the mean of its divisors is an integer number (54475200).

Almost surely, 2^1445430847 is an apocalyptic number.

1445430847 is a deficient number, since it is larger than the sum of its proper divisors (297775553).

1445430847 is a wasteful number, since it uses less digits than its factorization.

1445430847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 215040, while the sum is 40.

The square root of 1445430847 is about 38018.8222726586. The cubic root of 1445430847 is about 1130.6610711437.

The spelling of 1445430847 in words is "one billion, four hundred forty-five million, four hundred thirty thousand, eight hundred forty-seven".