1286860122 has 40 divisors (see below), whose sum is σ = 2889480000. Its totient is φ = 428066856.

The previous prime is 1286860121. The next prime is 1286860129. The reversal of 1286860122 is 2210686821.

1286860122 is a `hidden beast` number, since 1 + 28 + 6 + 8 + 601 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (1286860121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72879 + ... + 88797.

It is an arithmetic number, because the mean of its divisors is an integer number (72237000).

Almost surely, 2^1286860122 is an apocalyptic number.

1286860122 is an abundant number, since it is smaller than the sum of its proper divisors (1602619878).

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

1286860122 is a wasteful number, since it uses less digits than its factorization.

1286860122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16432 (or 16423 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1286860122 is about 35872.8326453320. The cubic root of 1286860122 is about 1087.7033037269.

The spelling of 1286860122 in words is "one billion, two hundred eighty-six million, eight hundred sixty thousand, one hundred twenty-two".