1386169829 has 12 divisors (see below), whose sum is σ = 1527775788. Its totient is φ = 1256735040.

The previous prime is 1386169823. The next prime is 1386169831. The reversal of 1386169829 is 9289616831.

It can be written as a sum of positive squares in 2 ways, for example, as 1030281604 + 355888225 = 32098^2 + 18865^2 .

It is not a de Polignac number, because 1386169829 - 2²⁰ = 1385121253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386169823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29777 + ... + 60489.

It is an arithmetic number, because the mean of its divisors is an integer number (127314649).

Almost surely, 2^1386169829 is an apocalyptic number.

It is an amenable number.

1386169829 is a deficient number, since it is larger than the sum of its proper divisors (141605959).

1386169829 is a wasteful number, since it uses less digits than its factorization.

1386169829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31108 (or 31097 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 1386169829 is about 37231.3017365764. The cubic root of 1386169829 is about 1114.9930165060.

The spelling of 1386169829 in words is "one billion, three hundred eighty-six million, one hundred sixty-nine thousand, eight hundred twenty-nine".