385836919 has 4 divisors (see below), whose sum is σ = 415516696. Its totient is φ = 356157144.

The previous prime is 385836907. The next prime is 385836929. The reversal of 385836919 is 919638583.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 385836919 - 2⁵ = 385836887 is a prime.

It is a super-2 number, since 2×385836919² = 297740256126825122, 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 (385836929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14839869 + ... + 14839894.

It is an arithmetic number, because the mean of its divisors is an integer number (103879174).

Almost surely, 2^385836919 is an apocalyptic number.

385836919 is a deficient number, since it is larger than the sum of its proper divisors (29679777).

385836919 is a wasteful number, since it uses less digits than its factorization.

385836919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29679776.

The product of its digits is 1399680, while the sum is 52.

The square root of 385836919 is about 19642.7319637570. The cubic root of 385836919 is about 728.0053881731.

The spelling of 385836919 in words is "three hundred eighty-five million, eight hundred thirty-six thousand, nine hundred nineteen".