1284872960 has 72 divisors (see below), whose sum is σ = 3517364256. Its totient is φ = 440524800.

The previous prime is 1284872957. The next prime is 1284872969. The reversal of 1284872960 is 692784821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1284872969) 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, 62741 + ... + 80660.

Almost surely, 2^1284872960 is an apocalyptic number.

1284872960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1284872960 is an abundant number, since it is smaller than the sum of its proper divisors (2232491296).

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

1284872960 is an equidigital number, since it uses as much as digits as its factorization.

1284872960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143429 (or 143415 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 1284872960 is about 35845.1246336235. The cubic root of 1284872960 is about 1087.1431402319.

The spelling of 1284872960 in words is "one billion, two hundred eighty-four million, eight hundred seventy-two thousand, nine hundred sixty".