384946645 has 8 divisors (see below), whose sum is σ = 462079800. Its totient is φ = 307861440.

The previous prime is 384946643. The next prime is 384946673. The reversal of 384946645 is 546649483.

It can be written as a sum of positive squares in 4 ways, for example, as 98863249 + 286083396 = 9943^2 + 16914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 384946645 - 2¹ = 384946643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384946643) 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 7 ways as a sum of consecutive naturals, for example, 9031 + ... + 29179.

It is an arithmetic number, because the mean of its divisors is an integer number (57759975).

Almost surely, 2^384946645 is an apocalyptic number.

It is an amenable number.

384946645 is a deficient number, since it is larger than the sum of its proper divisors (77133155).

384946645 is a wasteful number, since it uses less digits than its factorization.

384946645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23975.

The product of its digits is 2488320, while the sum is 49.

The square root of 384946645 is about 19620.0572119451. The cubic root of 384946645 is about 727.4450275928.

The spelling of 384946645 in words is "three hundred eighty-four million, nine hundred forty-six thousand, six hundred forty-five".