1383268809 has 8 divisors (see below), whose sum is σ = 1986232192. Its totient is φ = 851242320.

The previous prime is 1383268807. The next prime is 1383268811. The reversal of 1383268809 is 9088623831.

It is an interprime number because it is at equal distance from previous prime (1383268807) and next prime (1383268811).

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

It is not a de Polignac number, because 1383268809 - 2¹ = 1383268807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1383268807) 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 7 ways as a sum of consecutive naturals, for example, 17734177 + ... + 17734254.

It is an arithmetic number, because the mean of its divisors is an integer number (248279024).

Almost surely, 2^1383268809 is an apocalyptic number.

It is an amenable number.

1383268809 is a deficient number, since it is larger than the sum of its proper divisors (602963383).

1383268809 is a wasteful number, since it uses less digits than its factorization.

1383268809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35468447.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 1383268809 is about 37192.3219092328. The cubic root of 1383268809 is about 1114.2146423839.

The spelling of 1383268809 in words is "one billion, three hundred eighty-three million, two hundred sixty-eight thousand, eight hundred nine".