1447368816 has 40 divisors (see below), whose sum is σ = 3777595024. Its totient is φ = 477480960.

The previous prime is 1447368803. The next prime is 1447368823. The reversal of 1447368816 is 6188637441.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 150775 + ... + 160086.

Almost surely, 2^1447368816 is an apocalyptic number.

1447368816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1447368816 is an abundant number, since it is smaller than the sum of its proper divisors (2330226208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1447368816 is a wasteful number, since it uses less digits than its factorization.

1447368816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310969 (or 310963 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 1447368816 is about 38044.3007032591. The cubic root of 1447368816 is about 1131.1661587345.

The spelling of 1447368816 in words is "one billion, four hundred forty-seven million, three hundred sixty-eight thousand, eight hundred sixteen".