1385834831 has 8 divisors (see below), whose sum is σ = 1444821840. Its totient is φ = 1328064192.

The previous prime is 1385834719. The next prime is 1385834833. The reversal of 1385834831 is 1384385831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1385834831 - 2¹⁸ = 1385572687 is a prime.

It is a super-2 number, since 2×1385834831² = 3841076357625597122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385834833) 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, 301766 + ... + 306323.

It is an arithmetic number, because the mean of its divisors is an integer number (180602730).

Almost surely, 2^1385834831 is an apocalyptic number.

1385834831 is a deficient number, since it is larger than the sum of its proper divisors (58987009).

1385834831 is an equidigital number, since it uses as much as digits as its factorization.

1385834831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608185.

The product of its digits is 276480, while the sum is 44.

The square root of 1385834831 is about 37226.8025889949. The cubic root of 1385834831 is about 1114.9031885218.

The spelling of 1385834831 in words is "one billion, three hundred eighty-five million, eight hundred thirty-four thousand, eight hundred thirty-one".