1386485520 has 160 divisors (see below), whose sum is σ = 5032177920. Its totient is φ = 309166080.

The previous prime is 1386485519. The next prime is 1386485539. The reversal of 1386485520 is 255846831.

1386485520 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 58816 + ... + 78944.

It is an arithmetic number, because the mean of its divisors is an integer number (31451112).

Almost surely, 2^1386485520 is an apocalyptic number.

1386485520 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 1386485520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516088960).

1386485520 is an abundant number, since it is smaller than the sum of its proper divisors (3645692400).

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

1386485520 is a wasteful number, since it uses less digits than its factorization.

1386485520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20193 (or 20187 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 42.

The square root of 1386485520 is about 37235.5410864405. The cubic root of 1386485520 is about 1115.0776541732.

The spelling of 1386485520 in words is "one billion, three hundred eighty-six million, four hundred eighty-five thousand, five hundred twenty".