1386508480 has 224 divisors, whose sum is σ = 3998195712. Its totient is φ = 447897600.

The previous prime is 1386508477. The next prime is 1386508499. The reversal of 1386508480 is 848056831.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×1386508480² = 3844811530223820800, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 2846797 + ... + 2847283.

It is an arithmetic number, because the mean of its divisors is an integer number (17849088).

Almost surely, 2^1386508480 is an apocalyptic number.

1386508480 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 1386508480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1999097856).

1386508480 is an abundant number, since it is smaller than the sum of its proper divisors (2611687232).

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

1386508480 is a wasteful number, since it uses less digits than its factorization.

1386508480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1386508480 is about 37235.8493927559. The cubic root of 1386508480 is about 1115.0838093143.

The spelling of 1386508480 in words is "one billion, three hundred eighty-six million, five hundred eight thousand, four hundred eighty".