1385302869 has 6 divisors (see below), whose sum is σ = 2000993046. Its totient is φ = 923535240.

The previous prime is 1385302847. The next prime is 1385302873. The reversal of 1385302869 is 9682035831.

It is a happy number.

1385302869 is a `hidden beast` number, since 1 + 38 + 530 + 2 + 86 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 964847844 + 420455025 = 31062^2 + 20505^2 .

It is not a de Polignac number, because 1385302869 - 2¹⁵ = 1385270101 is a prime.

It is a super-2 number, since 2×1385302869² = 3838128077719262322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385302669) 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 5 ways as a sum of consecutive naturals, for example, 76961262 + ... + 76961279.

It is an arithmetic number, because the mean of its divisors is an integer number (333498841).

Almost surely, 2^1385302869 is an apocalyptic number.

It is an amenable number.

1385302869 is a deficient number, since it is larger than the sum of its proper divisors (615690177).

1385302869 is a wasteful number, since it uses less digits than its factorization.

1385302869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153922547 (or 153922544 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1385302869 is about 37219.6570242124. The cubic root of 1385302869 is about 1114.7605159080.

The spelling of 1385302869 in words is "one billion, three hundred eighty-five million, three hundred two thousand, eight hundred sixty-nine".