1282945668 has 24 divisors (see below), whose sum is σ = 3024403872. Its totient is φ = 423239424.

The previous prime is 1282945667. The next prime is 1282945709. The reversal of 1282945668 is 8665492821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1282945668.

It is not an unprimeable number, because it can be changed into a prime (1282945667) 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, 549930 + ... + 552257.

It is an arithmetic number, because the mean of its divisors is an integer number (126016828).

Almost surely, 2^1282945668 is an apocalyptic number.

It is an amenable number.

1282945668 is an abundant number, since it is smaller than the sum of its proper divisors (1741458204).

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

1282945668 is a wasteful number, since it uses less digits than its factorization.

1282945668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102291 (or 1102289 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The square root of 1282945668 is about 35818.2309445902. The cubic root of 1282945668 is about 1086.5993015729.

The spelling of 1282945668 in words is "one billion, two hundred eighty-two million, nine hundred forty-five thousand, six hundred sixty-eight".