1386259712 has 18 divisors (see below), whose sum is σ = 2767104858. Its totient is φ = 693129728.

The previous prime is 1386259621. The next prime is 1386259729. The reversal of 1386259712 is 2179526831.

It can be written as a sum of positive squares in only one way, i.e., 1283358976 + 102900736 = 35824^2 + 10144^2 .

It is a super-2 number, since 2×1386259712² = 3843431978228645888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2707283 + ... + 2707794.

Almost surely, 2^1386259712 is an apocalyptic number.

It is an amenable number.

1386259712 is a deficient number, since it is larger than the sum of its proper divisors (1380845146).

1386259712 is an frugal number, since it uses more digits than its factorization.

1386259712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415093 (or 5415079 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 1386259712 is about 37232.5088061495. The cubic root of 1386259712 is about 1115.0171157058.

The spelling of 1386259712 in words is "one billion, three hundred eighty-six million, two hundred fifty-nine thousand, seven hundred twelve".