384461645 has 8 divisors (see below), whose sum is σ = 471170304. Its totient is φ = 301025104.

The previous prime is 384461617. The next prime is 384461669. The reversal of 384461645 is 546164483.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-384461645 is a prime.

It is a super-3 number, since 3×384461645³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 817769 + ... + 818238.

It is an arithmetic number, because the mean of its divisors is an integer number (58896288).

Almost surely, 2^384461645 is an apocalyptic number.

It is an amenable number.

384461645 is a deficient number, since it is larger than the sum of its proper divisors (86708659).

384461645 is a wasteful number, since it uses less digits than its factorization.

384461645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636059.

The product of its digits is 276480, while the sum is 41.

The square root of 384461645 is about 19607.6935155566. The cubic root of 384461645 is about 727.1393929312.

The spelling of 384461645 in words is "three hundred eighty-four million, four hundred sixty-one thousand, six hundred forty-five".