1284366216 has 64 divisors (see below), whose sum is σ = 3676032000. Its totient is φ = 366320448.

The previous prime is 1284366203. The next prime is 1284366229. The reversal of 1284366216 is 6126634821.

It is an interprime number because it is at equal distance from previous prime (1284366203) and next prime (1284366229).

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 15 ways as a sum of consecutive naturals, for example, 94251 + ... + 107013.

It is an arithmetic number, because the mean of its divisors is an integer number (57438000).

Almost surely, 2^1284366216 is an apocalyptic number.

It is an amenable number.

1284366216 is an abundant number, since it is smaller than the sum of its proper divisors (2391665784).

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

1284366216 is a wasteful number, since it uses less digits than its factorization.

1284366216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13378 (or 13374 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 1284366216 is about 35838.0554159960. The cubic root of 1284366216 is about 1087.0002011449. Note that the first 3 decimals are identical.

The spelling of 1284366216 in words is "one billion, two hundred eighty-four million, three hundred sixty-six thousand, two hundred sixteen".