1386044266 has 4 divisors (see below), whose sum is σ = 2079066402. Its totient is φ = 693022132.

The previous prime is 1386044227. The next prime is 1386044269. The reversal of 1386044266 is 6624406831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1180953225 + 205091041 = 34365^2 + 14321^2 .

It is a super-2 number, since 2×1386044266² = 3842237414622957512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1386044269) 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 as a sum of consecutive naturals, namely, 346511065 + ... + 346511068.

Almost surely, 2^1386044266 is an apocalyptic number.

1386044266 is a deficient number, since it is larger than the sum of its proper divisors (693022136).

1386044266 is an equidigital number, since it uses as much as digits as its factorization.

1386044266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693022135.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 1386044266 is about 37229.6154425479. The cubic root of 1386044266 is about 1114.9593491316.

The spelling of 1386044266 in words is "one billion, three hundred eighty-six million, forty-four thousand, two hundred sixty-six".