1380857283 has 48 divisors (see below), whose sum is σ = 2317442400. Its totient is φ = 784622592.

The previous prime is 1380857213. The next prime is 1380857297. The reversal of 1380857283 is 3827580831.

It is not a de Polignac number, because 1380857283 - 2¹⁴ = 1380840899 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1380857213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98868 + ... + 111966.

It is an arithmetic number, because the mean of its divisors is an integer number (48280050).

Almost surely, 2^1380857283 is an apocalyptic number.

1380857283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1380857283 is a deficient number, since it is larger than the sum of its proper divisors (936585117).

1380857283 is a wasteful number, since it uses less digits than its factorization.

1380857283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13188 (or 13185 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 1380857283 is about 37159.8880918659. Note that the first 3 decimals coincide. The cubic root of 1380857283 is about 1113.5667758919.

The spelling of 1380857283 in words is "one billion, three hundred eighty million, eight hundred fifty-seven thousand, two hundred eighty-three".