1386866900 has 36 divisors (see below), whose sum is σ = 3066295932. Its totient is φ = 544277760.

The previous prime is 1386866863. The next prime is 1386866939. The reversal of 1386866900 is 96686831.

It can be written as a sum of positive squares in 6 ways, for example, as 73239364 + 1313627536 = 8558^2 + 36244^2 .

It is a super-2 number, since 2×1386866900² = 3846799596631220000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 125537 + ... + 136136.

It is an arithmetic number, because the mean of its divisors is an integer number (85174887).

Almost surely, 2^1386866900 is an apocalyptic number.

1386866900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386866900 is an abundant number, since it is smaller than the sum of its proper divisors (1679429032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1386866900 is a wasteful number, since it uses less digits than its factorization.

1386866900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261740 (or 261733 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1386866900 is about 37240.6619167812. The cubic root of 1386866900 is about 1115.1798861170.

The spelling of 1386866900 in words is "one billion, three hundred eighty-six million, eight hundred sixty-six thousand, nine hundred".