1385189120 has 144 divisors (see below), whose sum is σ = 3915061248. Its totient is φ = 459509760.

The previous prime is 1385189119. The next prime is 1385189131. The reversal of 1385189120 is 219815831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275267 + ... + 280253.

Almost surely, 2^1385189120 is an apocalyptic number.

1385189120 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 1385189120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957530624).

1385189120 is an abundant number, since it is smaller than the sum of its proper divisors (2529872128).

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

1385189120 is an equidigital number, since it uses as much as digits as its factorization.

1385189120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5046 (or 5032 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 1385189120 is about 37218.1289158926. The cubic root of 1385189120 is about 1114.7300035997.

The spelling of 1385189120 in words is "one billion, three hundred eighty-five million, one hundred eighty-nine thousand, one hundred twenty".