1385299140 has 24 divisors (see below), whose sum is σ = 3878837760. Its totient is φ = 369413088.

The previous prime is 1385299117. The next prime is 1385299141. The reversal of 1385299140 is 419925831.

It is a junction number, because it is equal to n+sod(n) for n = 1385299092 and 1385299101.

It is not an unprimeable number, because it can be changed into a prime (1385299141) 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, 11544100 + ... + 11544219.

It is an arithmetic number, because the mean of its divisors is an integer number (161618240).

Almost surely, 2^1385299140 is an apocalyptic number.

1385299140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385299140 is an abundant number, since it is smaller than the sum of its proper divisors (2493538620).

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

1385299140 is a wasteful number, since it uses less digits than its factorization.

1385299140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23088331 (or 23088329 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 1385299140 is about 37219.6069296816. The cubic root of 1385299140 is about 1114.7595156585.

The spelling of 1385299140 in words is "one billion, three hundred eighty-five million, two hundred ninety-nine thousand, one hundred forty".