1287322338 has 8 divisors (see below), whose sum is σ = 2574644688. Its totient is φ = 429107444.

The previous prime is 1287322327. The next prime is 1287322343. The reversal of 1287322338 is 8332237821.

It is a sphenic number, since it is the product of 3 distinct primes.

1287322338 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1287322296 and 1287322305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107276856 + ... + 107276867.

It is an arithmetic number, because the mean of its divisors is an integer number (321830586).

Almost surely, 2^1287322338 is an apocalyptic number.

1287322338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1287322338 is a wasteful number, since it uses less digits than its factorization.

1287322338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214553728.

The product of its digits is 96768, while the sum is 39.

The square root of 1287322338 is about 35879.2744909927. The cubic root of 1287322338 is about 1087.8335156746.

The spelling of 1287322338 in words is "one billion, two hundred eighty-seven million, three hundred twenty-two thousand, three hundred thirty-eight".