1386326385 has 12 divisors (see below), whose sum is σ = 2402965812. Its totient is φ = 739374048.

The previous prime is 1386326377. The next prime is 1386326401. The reversal of 1386326385 is 5836236831.

1386326385 is a `hidden beast` number, since 1 + 3 + 8 + 6 + 3 + 2 + 638 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 179667216 + 1206659169 = 13404^2 + 34737^2 .

It is not a de Polignac number, because 1386326385 - 2³ = 1386326377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 30807253 = 1386326385 / (1 + 3 + 8 + 6 + 3 + 2 + 6 + 3 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1386326385.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15403582 + ... + 15403671.

It is an arithmetic number, because the mean of its divisors is an integer number (200247151).

Almost surely, 2^1386326385 is an apocalyptic number.

1386326385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1386326385 is a deficient number, since it is larger than the sum of its proper divisors (1016639427).

1386326385 is a wasteful number, since it uses less digits than its factorization.

1386326385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30807264 (or 30807261 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 1386326385 is about 37233.4041554086. The cubic root of 1386326385 is about 1115.0349912270.

The spelling of 1386326385 in words is "one billion, three hundred eighty-six million, three hundred twenty-six thousand, three hundred eighty-five".