1447163638 has 16 divisors (see below), whose sum is σ = 2247958656. Its totient is φ = 697993920.

The previous prime is 1447163617. The next prime is 1447163689. The reversal of 1447163638 is 8363617441.

It is a junction number, because it is equal to n+sod(n) for n = 1447163594 and 1447163603.

It is a congruent number.

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, 17881 + ... + 56692.

It is an arithmetic number, because the mean of its divisors is an integer number (140497416).

Almost surely, 2^1447163638 is an apocalyptic number.

1447163638 is a deficient number, since it is larger than the sum of its proper divisors (800795018).

1447163638 is a wasteful number, since it uses less digits than its factorization.

1447163638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74919.

The product of its digits is 290304, while the sum is 43.

The square root of 1447163638 is about 38041.6040408393. The cubic root of 1447163638 is about 1131.1127050984.

The spelling of 1447163638 in words is "one billion, four hundred forty-seven million, one hundred sixty-three thousand, six hundred thirty-eight".