1386321049 has 8 divisors (see below), whose sum is σ = 1484363880. Its totient is φ = 1290110976.

The previous prime is 1386321043. The next prime is 1386321061. The reversal of 1386321049 is 9401236831.

It can be written as a sum of positive squares in 4 ways, for example, as 257025024 + 1129296025 = 16032^2 + 33605^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1386321049 - 2¹⁷ = 1386189977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1386320999 and 1386321017.

It is not an unprimeable number, because it can be changed into a prime (1386321043) 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 7 ways as a sum of consecutive naturals, for example, 456624 + ... + 459649.

It is an arithmetic number, because the mean of its divisors is an integer number (185545485).

Almost surely, 2^1386321049 is an apocalyptic number.

It is an amenable number.

1386321049 is a deficient number, since it is larger than the sum of its proper divisors (98042831).

1386321049 is an equidigital number, since it uses as much as digits as its factorization.

1386321049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916379.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1386321049 is about 37233.3324992539. The cubic root of 1386321049 is about 1115.0335606272.

The spelling of 1386321049 in words is "one billion, three hundred eighty-six million, three hundred twenty-one thousand, forty-nine".