1383940269 has 8 divisors (see below), whose sum is σ = 2050281920. Its totient is φ = 922626828.

The previous prime is 1383940241. The next prime is 1383940273. The reversal of 1383940269 is 9620493831.

It is a happy number.

1383940269 is a `hidden beast` number, since 1 + 383 + 9 + 4 + 0 + 269 = 666.

It is not a de Polignac number, because 1383940269 - 2⁵ = 1383940237 is a prime.

It is a super-2 number, since 2×1383940269² = 3830581336319584722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383940769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25628497 + ... + 25628550.

It is an arithmetic number, because the mean of its divisors is an integer number (256285240).

Almost surely, 2^1383940269 is an apocalyptic number.

It is an amenable number.

1383940269 is a deficient number, since it is larger than the sum of its proper divisors (666341651).

1383940269 is an equidigital number, since it uses as much as digits as its factorization.

1383940269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51257056 (or 51257050 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 1383940269 is about 37201.3476772012. The cubic root of 1383940269 is about 1114.3948988742.

The spelling of 1383940269 in words is "one billion, three hundred eighty-three million, nine hundred forty thousand, two hundred sixty-nine".