385384951 has 24 divisors (see below), whose sum is σ = 476597520. Its totient is φ = 309641472.

The previous prime is 385384949. The next prime is 385384969. The reversal of 385384951 is 159483583.

It is not a de Polignac number, because 385384951 - 2¹ = 385384949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385384921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243280 + ... + 244858.

It is an arithmetic number, because the mean of its divisors is an integer number (19858230).

Almost surely, 2^385384951 is an apocalyptic number.

385384951 is a deficient number, since it is larger than the sum of its proper divisors (91212569).

385384951 is a wasteful number, since it uses less digits than its factorization.

385384951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903 (or 1896 counting only the distinct ones).

The product of its digits is 518400, while the sum is 46.

The square root of 385384951 is about 19631.2238793204. The cubic root of 385384951 is about 727.7210161292.

It can be divided in two parts, 3853 and 84951, that added together give a square (88804 = 298²).

The spelling of 385384951 in words is "three hundred eighty-five million, three hundred eighty-four thousand, nine hundred fifty-one".