1383934465 has 4 divisors (see below), whose sum is σ = 1660721364. Its totient is φ = 1107147568.

The previous prime is 1383934429. The next prime is 1383934553. The reversal of 1383934465 is 5644393831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5644393831 = 727 ⋅7763953.

It can be written as a sum of positive squares in 2 ways, for example, as 397723249 + 986211216 = 19943^2 + 31404^2 .

It is a cyclic number.

It is not a de Polignac number, because 1383934465 - 2⁷ = 1383934337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 138393442 + ... + 138393451.

It is an arithmetic number, because the mean of its divisors is an integer number (415180341).

Almost surely, 2^1383934465 is an apocalyptic number.

It is an amenable number.

1383934465 is a deficient number, since it is larger than the sum of its proper divisors (276786899).

1383934465 is an equidigital number, since it uses as much as digits as its factorization.

1383934465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276786898.

The product of its digits is 933120, while the sum is 46.

The square root of 1383934465 is about 37201.2696691927. The cubic root of 1383934465 is about 1114.3933410138.

The spelling of 1383934465 in words is "one billion, three hundred eighty-three million, nine hundred thirty-four thousand, four hundred sixty-five".