1385117340 has 24 divisors (see below), whose sum is σ = 3878328720. Its totient is φ = 369364608.

The previous prime is 1385117303. The next prime is 1385117341. The reversal of 1385117340 is 437115831.

1385117340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385117341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11542585 + ... + 11542704.

It is an arithmetic number, because the mean of its divisors is an integer number (161597030).

Almost surely, 2^1385117340 is an apocalyptic number.

1385117340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385117340 is an abundant number, since it is smaller than the sum of its proper divisors (2493211380).

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

1385117340 is a wasteful number, since it uses less digits than its factorization.

1385117340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23085301 (or 23085299 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1385117340 is about 37217.1645883993. The cubic root of 1385117340 is about 1114.7107482983.

The spelling of 1385117340 in words is "one billion, three hundred eighty-five million, one hundred seventeen thousand, three hundred forty".