1445664634 has 32 divisors (see below), whose sum is σ = 2241561600. Its totient is φ = 698920320.

The previous prime is 1445664617. The next prime is 1445664667. The reversal of 1445664634 is 4364665441.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5144574 + ... + 5144854.

It is an arithmetic number, because the mean of its divisors is an integer number (70048800).

Almost surely, 2^1445664634 is an apocalyptic number.

1445664634 is a deficient number, since it is larger than the sum of its proper divisors (795896966).

1445664634 is a wasteful number, since it uses less digits than its factorization.

1445664634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its digits is 829440, while the sum is 43.

The square root of 1445664634 is about 38021.8967701507. The cubic root of 1445664634 is about 1130.7220263508.

The spelling of 1445664634 in words is "one billion, four hundred forty-five million, six hundred sixty-four thousand, six hundred thirty-four".