1385757830 has 16 divisors (see below), whose sum is σ = 2497935024. Its totient is φ = 553509600.

The previous prime is 1385757829. The next prime is 1385757847. The reversal of 1385757830 is 387575831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91832 + ... + 105851.

It is an arithmetic number, because the mean of its divisors is an integer number (156120939).

Almost surely, 2^1385757830 is an apocalyptic number.

1385757830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385757830 is a deficient number, since it is larger than the sum of its proper divisors (1112177194).

1385757830 is a wasteful number, since it uses less digits than its factorization.

1385757830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198391.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 1385757830 is about 37225.7683601024. The cubic root of 1385757830 is about 1114.8825390551.

The spelling of 1385757830 in words is "one billion, three hundred eighty-five million, seven hundred fifty-seven thousand, eight hundred thirty".