1445224772 has 12 divisors (see below), whose sum is σ = 2530214400. Its totient is φ = 722306376.

The previous prime is 1445224771. The next prime is 1445224793. The reversal of 1445224772 is 2774225441.

It is not an unprimeable number, because it can be changed into a prime (1445224771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65708 + ... + 84899.

It is an arithmetic number, because the mean of its divisors is an integer number (210851200).

Almost surely, 2^1445224772 is an apocalyptic number.

It is an amenable number.

1445224772 is a deficient number, since it is larger than the sum of its proper divisors (1084989628).

1445224772 is a wasteful number, since it uses less digits than its factorization.

1445224772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153010 (or 153008 counting only the distinct ones).

The product of its digits is 125440, while the sum is 38.

The square root of 1445224772 is about 38016.1120053064. The cubic root of 1445224772 is about 1130.6073358267.

The spelling of 1445224772 in words is "one billion, four hundred forty-five million, two hundred twenty-four thousand, seven hundred seventy-two".