1384063209 has 9 divisors (see below), whose sum is σ = 1999363639. Its totient is φ = 922634400.

The previous prime is 1384063201. The next prime is 1384063229. The reversal of 1384063209 is 9023604831.

The square root of 1384063209 is 37203.

It is a perfect power (a square), and thus also a powerful number.

1384063209 is a `hidden beast` number, since 13 + 8 + 4 + 0 + 632 + 0 + 9 = 666.

1384063209 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 519703209 + 864360000 = 22797^2 + 29400^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1384063209 - 2³ = 1384063201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1384063201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 105409 + ... + 117809.

Almost surely, 2^1384063209 is an apocalyptic number.

1384063209 is the 37203-rd square number.

1384063209 is the 18602-nd centered octagonal number.

It is an amenable number.

1384063209 is a deficient number, since it is larger than the sum of its proper divisors (615300430).

1384063209 is an frugal number, since it uses more digits than its factorization.

1384063209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24808 (or 12404 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The cubic root of 1384063209 is about 1114.4278963610.

Multiplying 1384063209 by its sum of digits (36), we get a square (49826275524 = 223218²).

The spelling of 1384063209 in words is "one billion, three hundred eighty-four million, sixty-three thousand, two hundred nine".