1445216044 has 24 divisors (see below), whose sum is σ = 2640813840. Its totient is φ = 691164096.

The previous prime is 1445215991. The next prime is 1445216051. The reversal of 1445216044 is 4406125441.

It is a junction number, because it is equal to n+sod(n) for n = 1445215997 and 1445216015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45807 + ... + 70630.

It is an arithmetic number, because the mean of its divisors is an integer number (110033910).

Almost surely, 2^1445216044 is an apocalyptic number.

It is an amenable number.

1445216044 is a deficient number, since it is larger than the sum of its proper divisors (1195597796).

1445216044 is a wasteful number, since it uses less digits than its factorization.

1445216044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116577 (or 116575 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1445216044 is about 38015.9972117002. The cubic root of 1445216044 is about 1130.6050598346.

The spelling of 1445216044 in words is "one billion, four hundred forty-five million, two hundred sixteen thousand, forty-four".