385343885 has 8 divisors (see below), whose sum is σ = 466655640. Its totient is φ = 305446464.

The previous prime is 385343869. The next prime is 385343891. The reversal of 385343885 is 588343583.

It can be written as a sum of positive squares in 4 ways, for example, as 37185604 + 348158281 = 6098^2 + 18659^2 .

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 385343885 - 2⁴ = 385343869 is a prime.

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, 352982 + ... + 354071.

It is an arithmetic number, because the mean of its divisors is an integer number (58331955).

Almost surely, 2^385343885 is an apocalyptic number.

It is an amenable number.

385343885 is a deficient number, since it is larger than the sum of its proper divisors (81311755).

385343885 is a wasteful number, since it uses less digits than its factorization.

385343885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707167.

The product of its digits is 1382400, while the sum is 47.

The square root of 385343885 is about 19630.1779156481. The cubic root of 385343885 is about 727.6951669510.

The spelling of 385343885 in words is "three hundred eighty-five million, three hundred forty-three thousand, eight hundred eighty-five".