385340387 has 16 divisors (see below), whose sum is σ = 415632000. Its totient is φ = 356145984.

The previous prime is 385340341. The next prime is 385340393. The reversal of 385340387 is 783043583.

It is a cyclic number.

It is not a de Polignac number, because 385340387 - 2¹⁰ = 385339363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385340327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154583 + ... + 157055.

It is an arithmetic number, because the mean of its divisors is an integer number (25977000).

Almost surely, 2^385340387 is an apocalyptic number.

385340387 is a deficient number, since it is larger than the sum of its proper divisors (30291613).

385340387 is a wasteful number, since it uses less digits than its factorization.

385340387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 385340387 is about 19630.0888179346. The cubic root of 385340387 is about 727.6929650343.

The spelling of 385340387 in words is "three hundred eighty-five million, three hundred forty thousand, three hundred eighty-seven".