385668099 has 24 divisors (see below), whose sum is σ = 600709200. Its totient is φ = 237634560.

The previous prime is 385668091. The next prime is 385668109. The reversal of 385668099 is 990866583.

It is not a de Polignac number, because 385668099 - 2³ = 385668091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385668091) 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, 20494 + ... + 34515.

It is an arithmetic number, because the mean of its divisors is an integer number (25029550).

Almost surely, 2^385668099 is an apocalyptic number.

385668099 is a deficient number, since it is larger than the sum of its proper divisors (215041101).

385668099 is a wasteful number, since it uses less digits than its factorization.

385668099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55075 (or 55072 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 385668099 is about 19638.4342298463. The cubic root of 385668099 is about 727.8991949493.

It can be divided in two parts, 38566 and 8099, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 385668099 in words is "three hundred eighty-five million, six hundred sixty-eight thousand, ninety-nine".