1383207856 has 40 divisors (see below), whose sum is σ = 2960997984. Its totient is φ = 622617600.

The previous prime is 1383207853. The next prime is 1383207863. The reversal of 1383207856 is 6587023831.

It is not an unprimeable number, because it can be changed into a prime (1383207853) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 104295 + ... + 116806.

Almost surely, 2^1383207856 is an apocalyptic number.

1383207856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1383207856 is an abundant number, since it is smaller than the sum of its proper divisors (1577790128).

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

1383207856 is a wasteful number, since it uses less digits than its factorization.

1383207856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221149 (or 221143 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 1383207856 is about 37191.5024703224. The cubic root of 1383207856 is about 1114.1982763862.

The spelling of 1383207856 in words is "one billion, three hundred eighty-three million, two hundred seven thousand, eight hundred fifty-six".