1380438083 has 4 divisors (see below), whose sum is σ = 1382489928. Its totient is φ = 1378386240.

The previous prime is 1380438079. The next prime is 1380438121. The reversal of 1380438083 is 3808340831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380438083 - 2² = 1380438079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1380438023) 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 3 ways as a sum of consecutive naturals, for example, 1024913 + ... + 1026258.

It is an arithmetic number, because the mean of its divisors is an integer number (345622482).

Almost surely, 2^1380438083 is an apocalyptic number.

1380438083 is a deficient number, since it is larger than the sum of its proper divisors (2051845).

1380438083 is an equidigital number, since it uses as much as digits as its factorization.

1380438083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051844.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1380438083 is about 37154.2471731026. The cubic root of 1380438083 is about 1113.4540791289.

The spelling of 1380438083 in words is "one billion, three hundred eighty million, four hundred thirty-eight thousand, eighty-three".