1445863628 has 48 divisors (see below), whose sum is σ = 2890024704. Its totient is φ = 626514240.

The previous prime is 1445863607. The next prime is 1445863669. The reversal of 1445863628 is 8263685441.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 318551 + ... + 323057.

It is an arithmetic number, because the mean of its divisors is an integer number (60208848).

Almost surely, 2^1445863628 is an apocalyptic number.

It is an amenable number.

1445863628 is a deficient number, since it is larger than the sum of its proper divisors (1444161076).

1445863628 is a wasteful number, since it uses less digits than its factorization.

1445863628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4862 (or 4860 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 47.

The square root of 1445863628 is about 38024.5135143107. The cubic root of 1445863628 is about 1130.7739048133.

The spelling of 1445863628 in words is "one billion, four hundred forty-five million, eight hundred sixty-three thousand, six hundred twenty-eight".