1286418368 has 56 divisors (see below), whose sum is σ = 2638239072. Its totient is φ = 621886464.

The previous prime is 1286418361. The next prime is 1286418379. The reversal of 1286418368 is 8638146821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286418361) 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, 393830 + ... + 397082.

It is an arithmetic number, because the mean of its divisors is an integer number (47111412).

Almost surely, 2^1286418368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1286418368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1319119536).

1286418368 is an abundant number, since it is smaller than the sum of its proper divisors (1351820704).

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

1286418368 is a wasteful number, since it uses less digits than its factorization.

1286418368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469 (or 3459 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 1286418368 is about 35866.6748946707. The cubic root of 1286418368 is about 1087.5788270337.

The spelling of 1286418368 in words is "one billion, two hundred eighty-six million, four hundred eighteen thousand, three hundred sixty-eight".