1383918945 has 8 divisors (see below), whose sum is σ = 2214270336. Its totient is φ = 738090096.

The previous prime is 1383918929. The next prime is 1383918953. The reversal of 1383918945 is 5498193831.

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

It is not a de Polignac number, because 1383918945 - 2⁴ = 1383918929 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46130617 + ... + 46130646.

It is an arithmetic number, because the mean of its divisors is an integer number (276783792).

Almost surely, 2^1383918945 is an apocalyptic number.

1383918945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1383918945 is a deficient number, since it is larger than the sum of its proper divisors (830351391).

1383918945 is an equidigital number, since it uses as much as digits as its factorization.

1383918945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92261271.

The product of its digits is 933120, while the sum is 51.

The square root of 1383918945 is about 37201.0610735769. The cubic root of 1383918945 is about 1114.3891752459.

The spelling of 1383918945 in words is "one billion, three hundred eighty-three million, nine hundred eighteen thousand, nine hundred forty-five".