1446421456 has 20 divisors (see below), whose sum is σ = 2812015332. Its totient is φ = 720740096.

The previous prime is 1446421441. The next prime is 1446421513. The reversal of 1446421456 is 6541246441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1022720400 + 423701056 = 31980^2 + 20584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149581 + ... + 158956.

Almost surely, 2^1446421456 is an apocalyptic number.

1446421456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1446421456 is a deficient number, since it is larger than the sum of its proper divisors (1365593876).

1446421456 is a wasteful number, since it uses less digits than its factorization.

1446421456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308838 (or 308832 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 1446421456 is about 38031.8479172390. The cubic root of 1446421456 is about 1130.9193072406.

Adding to 1446421456 its reverse (6541246441), we get a palindrome (7987667897).

The spelling of 1446421456 in words is "one billion, four hundred forty-six million, four hundred twenty-one thousand, four hundred fifty-six".