1445709344 has 48 divisors (see below), whose sum is σ = 2996445312. Its totient is φ = 685267968.

The previous prime is 1445709341. The next prime is 1445709347. The reversal of 1445709344 is 4439075441.

It is an interprime number because it is at equal distance from previous prime (1445709341) and next prime (1445709347).

It is not an unprimeable number, because it can be changed into a prime (1445709341) 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 7 ways as a sum of consecutive naturals, for example, 74477 + ... + 91859.

It is an arithmetic number, because the mean of its divisors is an integer number (62425944).

Almost surely, 2^1445709344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1445709344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498222656).

1445709344 is an abundant number, since it is smaller than the sum of its proper divisors (1550735968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445709344 is a wasteful number, since it uses less digits than its factorization.

1445709344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17529 (or 17521 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 1445709344 is about 38022.4847162833. The cubic root of 1445709344 is about 1130.7336828257.

The spelling of 1445709344 in words is "one billion, four hundred forty-five million, seven hundred nine thousand, three hundred forty-four".