1386550080 has 168 divisors, whose sum is σ = 5020360800. Its totient is φ = 350272512.

The previous prime is 1386550079. The next prime is 1386550111. The reversal of 1386550080 is 800556831.

1386550080 is a `hidden beast` number, since 13 + 8 + 65 + 500 + 80 = 666.

It is a super-2 number, since 2×1386550080² = 3845042248696012800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42051 + ... + 67389.

It is an arithmetic number, because the mean of its divisors is an integer number (29883100).

Almost surely, 2^1386550080 is an apocalyptic number.

1386550080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386550080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2510180400).

1386550080 is an abundant number, since it is smaller than the sum of its proper divisors (3633810720).

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

1386550080 is a wasteful number, since it uses less digits than its factorization.

1386550080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25381 (or 25368 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1386550080 is about 37236.4079900304. The cubic root of 1386550080 is about 1115.0949613130.

The spelling of 1386550080 in words is "one billion, three hundred eighty-six million, five hundred fifty thousand, eighty".