1284634144 has 48 divisors (see below), whose sum is σ = 2572305120. Its totient is φ = 631411200.

The previous prime is 1284634139. The next prime is 1284634177. The reversal of 1284634144 is 4414364821.

It is a super-2 number, since 2×1284634144² = 3300569767861225472, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 884619 + ... + 886069.

It is an arithmetic number, because the mean of its divisors is an integer number (53589690).

Almost surely, 2^1284634144 is an apocalyptic number.

It is an amenable number.

1284634144 is an abundant number, since it is smaller than the sum of its proper divisors (1287670976).

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

1284634144 is a wasteful number, since it uses less digits than its factorization.

1284634144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1905 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 1284634144 is about 35841.7932587085. The cubic root of 1284634144 is about 1087.0757812345.

Adding to 1284634144 its reverse (4414364821), we get a palindrome (5698998965).

The spelling of 1284634144 in words is "one billion, two hundred eighty-four million, six hundred thirty-four thousand, one hundred forty-four".