1284881288 has 32 divisors (see below), whose sum is σ = 2480821560. Its totient is φ = 623493120.

The previous prime is 1284881243. The next prime is 1284881309. The reversal of 1284881288 is 8821884821.

It can be written as a sum of positive squares in 4 ways, for example, as 596238724 + 688642564 = 24418^2 + 26242^2 .

It is a nude number because it is divisible by every one of its digits.

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, 53156 + ... + 73452.

Almost surely, 2^1284881288 is an apocalyptic number.

It is an amenable number.

1284881288 is a deficient number, since it is larger than the sum of its proper divisors (1195940272).

1284881288 is a wasteful number, since it uses less digits than its factorization.

1284881288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20537 (or 20533 counting only the distinct ones).

The product of its digits is 524288, while the sum is 50.

The square root of 1284881288 is about 35845.2407998607. The cubic root of 1284881288 is about 1087.1454890266.

The spelling of 1284881288 in words is "one billion, two hundred eighty-four million, eight hundred eighty-one thousand, two hundred eighty-eight".