1284489160 has 32 divisors (see below), whose sum is σ = 2933242560. Its totient is φ = 506126016.

The previous prime is 1284489149. The next prime is 1284489169. The reversal of 1284489160 is 619844821.

It is not an unprimeable number, because it can be changed into a prime (1284489169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236964 + ... + 242323.

It is an arithmetic number, because the mean of its divisors is an integer number (91663830).

Almost surely, 2^1284489160 is an apocalyptic number.

1284489160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1284489160 is an abundant number, since it is smaller than the sum of its proper divisors (1648753400).

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

1284489160 is a wasteful number, since it uses less digits than its factorization.

1284489160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479365 (or 479361 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 1284489160 is about 35839.7706465876. The cubic root of 1284489160 is about 1087.0348838512.

The spelling of 1284489160 in words is "one billion, two hundred eighty-four million, four hundred eighty-nine thousand, one hundred sixty".