1380204783 has 12 divisors (see below), whose sum is σ = 2098557240. Its totient is φ = 871708176.

The previous prime is 1380204781. The next prime is 1380204797. The reversal of 1380204783 is 3874020831.

1380204783 is a `hidden beast` number, since 1 + 380 + 204 + 78 + 3 = 666.

It is not a de Polignac number, because 1380204783 - 2¹ = 1380204781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380204781) 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 11 ways as a sum of consecutive naturals, for example, 4035516 + ... + 4035857.

It is an arithmetic number, because the mean of its divisors is an integer number (174879770).

Almost surely, 2^1380204783 is an apocalyptic number.

1380204783 is a deficient number, since it is larger than the sum of its proper divisors (718352457).

1380204783 is a wasteful number, since it uses less digits than its factorization.

1380204783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071398 (or 8071395 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1380204783 is about 37151.1074262935. The cubic root of 1380204783 is about 1113.3913494116.

The spelling of 1380204783 in words is "one billion, three hundred eighty million, two hundred four thousand, seven hundred eighty-three".