1386285528 has 64 divisors (see below), whose sum is σ = 3583641600. Its totient is φ = 446423040.

The previous prime is 1386285479. The next prime is 1386285529. The reversal of 1386285528 is 8255826831.

It is a super-3 number, since 3×1386285528³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386285529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570925 + ... + 573347.

It is an arithmetic number, because the mean of its divisors is an integer number (55994400).

Almost surely, 2^1386285528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386285528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1791820800).

1386285528 is an abundant number, since it is smaller than the sum of its proper divisors (2197356072).

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

1386285528 is a wasteful number, since it uses less digits than its factorization.

1386285528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232 (or 3228 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 1386285528 is about 37232.8554908162. The cubic root of 1386285528 is about 1115.0240372331.

The spelling of 1386285528 in words is "one billion, three hundred eighty-six million, two hundred eighty-five thousand, five hundred twenty-eight".