1286422396 has 24 divisors (see below), whose sum is σ = 2635599456. Its totient is φ = 537876480.

The previous prime is 1286422387. The next prime is 1286422399. The reversal of 1286422396 is 6932246821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286422399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559141 + ... + 561436.

It is an arithmetic number, because the mean of its divisors is an integer number (109816644).

Almost surely, 2^1286422396 is an apocalyptic number.

It is an amenable number.

1286422396 is an abundant number, since it is smaller than the sum of its proper divisors (1349177060).

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

1286422396 is a wasteful number, since it uses less digits than its factorization.

1286422396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120629 (or 1120627 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 1286422396 is about 35866.7310470302. The cubic root of 1286422396 is about 1087.5799621655.

The spelling of 1286422396 in words is "one billion, two hundred eighty-six million, four hundred twenty-two thousand, three hundred ninety-six".