1385982528 has 112 divisors (see below), whose sum is σ = 4437546624. Its totient is φ = 372695040.

The previous prime is 1385982527. The next prime is 1385982539. The reversal of 1385982528 is 8252895831.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1385982527) 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, 7483 + ... + 53178.

It is an arithmetic number, because the mean of its divisors is an integer number (39620952).

Almost surely, 2^1385982528 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 1385982528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218773312).

1385982528 is an abundant number, since it is smaller than the sum of its proper divisors (3051564096).

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

1385982528 is a wasteful number, since it uses less digits than its factorization.

1385982528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60700 (or 60690 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 51.

The square root of 1385982528 is about 37228.7862815859. The cubic root of 1385982528 is about 1114.9427944938.

The spelling of 1385982528 in words is "one billion, three hundred eighty-five million, nine hundred eighty-two thousand, five hundred twenty-eight".