1386021100 has 18 divisors (see below), whose sum is σ = 3007666004. Its totient is φ = 554408400.

The previous prime is 1386021053. The next prime is 1386021103. The reversal of 1386021100 is 11206831.

It is not an unprimeable number, because it can be changed into a prime (1386021103) 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 5 ways as a sum of consecutive naturals, for example, 6930006 + ... + 6930205.

Almost surely, 2^1386021100 is an apocalyptic number.

1386021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386021100 is an abundant number, since it is smaller than the sum of its proper divisors (1621644904).

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

1386021100 is a wasteful number, since it uses less digits than its factorization.

1386021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13860225 (or 13860218 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1386021100 is about 37229.3043179697. The cubic root of 1386021100 is about 1114.9531373790.

Adding to 1386021100 its reverse (11206831), we get a palindrome (1397227931).

The spelling of 1386021100 in words is "one billion, three hundred eighty-six million, twenty-one thousand, one hundred".