385144471 has 4 divisors (see below), whose sum is σ = 385259152. Its totient is φ = 385029792.

The previous prime is 385144373. The next prime is 385144493. The reversal of 385144471 is 174441583.

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 385144471 - 2¹¹ = 385142423 is a prime.

It is a super-3 number, since 3×385144471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385144471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385144871) 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, 52146 + ... + 59071.

It is an arithmetic number, because the mean of its divisors is an integer number (96314788).

Almost surely, 2^385144471 is an apocalyptic number.

385144471 is a deficient number, since it is larger than the sum of its proper divisors (114681).

385144471 is a wasteful number, since it uses less digits than its factorization.

385144471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114680.

The product of its digits is 53760, while the sum is 37.

The square root of 385144471 is about 19625.0979870165. The cubic root of 385144471 is about 727.5696187947.

The spelling of 385144471 in words is "three hundred eighty-five million, one hundred forty-four thousand, four hundred seventy-one".