1286906922 has 48 divisors (see below), whose sum is σ = 3234209472. Its totient is φ = 362197440.

The previous prime is 1286906899. The next prime is 1286907001. The reversal of 1286906922 is 2296096821.

It is a super-2 number, since 2×1286906922² = 3312258851783028168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67779 + ... + 84662.

It is an arithmetic number, because the mean of its divisors is an integer number (67379364).

Almost surely, 2^1286906922 is an apocalyptic number.

1286906922 is an abundant number, since it is smaller than the sum of its proper divisors (1947302550).

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

1286906922 is a wasteful number, since it uses less digits than its factorization.

1286906922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152523 (or 152520 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1286906922 is about 35873.4849436182. The cubic root of 1286906922 is about 1087.7164892826.

The spelling of 1286906922 in words is "one billion, two hundred eighty-six million, nine hundred six thousand, nine hundred twenty-two".