385666479 has 24 divisors (see below), whose sum is σ = 608484864. Its totient is φ = 233442000.

The previous prime is 385666469. The next prime is 385666517. The reversal of 385666479 is 974666583.

It is not a de Polignac number, because 385666479 - 2²¹ = 383569327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385666409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96144 + ... + 100074.

It is an arithmetic number, because the mean of its divisors is an integer number (25353536).

Almost surely, 2^385666479 is an apocalyptic number.

385666479 is a deficient number, since it is larger than the sum of its proper divisors (222818385).

385666479 is a wasteful number, since it uses less digits than its factorization.

385666479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939 (or 4936 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 385666479 is about 19638.3929841522. The cubic root of 385666479 is about 727.8981757669.

The spelling of 385666479 in words is "three hundred eighty-five million, six hundred sixty-six thousand, four hundred seventy-nine".