385024819 has 4 divisors (see below), whose sum is σ = 385674696. Its totient is φ = 384374944.

The previous prime is 385024777. The next prime is 385024837. The reversal of 385024819 is 918420583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918420583 = 79 ⋅11625577.

It is a cyclic number.

It is not a de Polignac number, because 385024819 - 2⁷ = 385024691 is a prime.

It is a super-2 number, since 2×385024819² = 296488222491965522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385024889) 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, 324049 + ... + 325234.

It is an arithmetic number, because the mean of its divisors is an integer number (96418674).

Almost surely, 2^385024819 is an apocalyptic number.

385024819 is a deficient number, since it is larger than the sum of its proper divisors (649877).

385024819 is an equidigital number, since it uses as much as digits as its factorization.

385024819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649876.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 385024819 is about 19622.0493068385. The cubic root of 385024819 is about 727.4942668309.

The spelling of 385024819 in words is "three hundred eighty-five million, twenty-four thousand, eight hundred nineteen".