1384805969 has 4 divisors (see below), whose sum is σ = 1384880640. Its totient is φ = 1384731300.

The previous prime is 1384805959. The next prime is 1384806023. The reversal of 1384805969 is 9695084831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1384805969 - 2⁴ = 1384805953 is a prime.

It is a super-2 number, since 2×1384805969² = 3835375143556057922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1384805969.

It is not an unprimeable number, because it can be changed into a prime (1384805959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14144 + ... + 54494.

It is an arithmetic number, because the mean of its divisors is an integer number (346220160).

Almost surely, 2^1384805969 is an apocalyptic number.

It is an amenable number.

1384805969 is a deficient number, since it is larger than the sum of its proper divisors (74671).

1384805969 is an equidigital number, since it uses as much as digits as its factorization.

1384805969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74670.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The square root of 1384805969 is about 37212.9811893646. The cubic root of 1384805969 is about 1114.6272139527.

The spelling of 1384805969 in words is "one billion, three hundred eighty-four million, eight hundred five thousand, nine hundred sixty-nine".