385742305 has 8 divisors (see below), whose sum is σ = 498497832. Its totient is φ = 284855808.

The previous prime is 385742299. The next prime is 385742333. The reversal of 385742305 is 503247583.

It can be written as a sum of positive squares in 4 ways, for example, as 51984 + 385690321 = 228^2 + 19639^2 .

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 385742305 - 2¹⁵ = 385709537 is a prime.

It is a Duffinian 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, 2967184 + ... + 2967313.

It is an arithmetic number, because the mean of its divisors is an integer number (62312229).

Almost surely, 2^385742305 is an apocalyptic number.

It is an amenable number.

385742305 is a deficient number, since it is larger than the sum of its proper divisors (112755527).

385742305 is a wasteful number, since it uses less digits than its factorization.

385742305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5934515.

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 385742305 is about 19640.3234443835. The cubic root of 385742305 is about 727.9458767324.

Adding to 385742305 its reverse (503247583), we get a palindrome (888989888).

The spelling of 385742305 in words is "three hundred eighty-five million, seven hundred forty-two thousand, three hundred five".